12 Days of Christmas
57th
395th
82nd
915th
162nd
253rd
56th
194th
495th
412th
216th
23rd
73rd
69th
87th
1st
360th
60th
203rd
12th
139th
17th
42nd
50th
46th
140th
127th
80th
155th
99 Bottles of Beer
57th
35th
100th
442nd
31st
33rd
107th
264th
238th
243rd
113th
558th
175th
77th
2nd
136th
51st
6th
60th
152nd
84th
154th
11th
25th
16th
73rd
17th
56th
494th
133rd
153rd
27th
220thAbundant Numbers
335th
159th
388th
500th
2,941st
465th
706th
406th
876th
276th
1,015th
546th
175th
683rd
1st
76th
25th
1,105th
450th
185th
1,098th
54th
442nd
1,426th
904th
553rd
218th
98th
751st
416th
45th
236th
342nd
1,496th
844th
1,428th
2,308th
1,556thAbundant Numbers (Long)
497th
219th
624th
312th
625th
740th
623rd
56th
253rd
674th
242nd
479th
1st
74th
11th
161st
64th
1,059th
43rd
245th
114th
257th
231st
69th
129th
221st
335th
176th
150th
376th
644th
944thArabic to Roman
127th
178th
153rd
299th
313th
246th
114th
194th
38th
182nd
134th
37th
275th
256th
53rd
2nd
136th
145th
165th
75th
407th
80th
104th
81st
72nd
181st
218th
174th
Arithmetic Numbers
61st
680th
494th
250th
575th
34th
292nd
132nd
211th
59th
Arrows
73rd
93rd
238th
76th
209th
184th
185th
132nd
8th
172nd
78th
83rd
140th
154th
174th
21st
58th
54th
274th
112th
95th
Ascending Primes
23rd
ASCII Table
129th
310th
135th
183rd
100th
80th
11th
82nd
147th
104th
287th
95th
339th
242nd
brainfuck
414th
178th
258th
💎
149th
117th
210th
118th
11th
157th
74th
35th
19th
136th
Catalan Numbers
1st
469th
607th
287th
448th
262nd
304th
238th
468th
10th
329th
21st
494th
336th
108th
383rd
294th
511th
226th
319th
363rd
34th
232nd
92nd
844th
Catalan’s Constant
81st
83rd
94th
68th
92nd
84th
143rd
114th
76th
65th
109th
96th
💎
62nd
210th
112th
85th
58th
3rd
77th
82nd
99th
107th
56th
74th
53rd
201st
42nd
48th
40th
91st
95th
179th
103rd
Christmas Trees
529th
1,146th
234th
1,071st
661st
389th
374th
112th
188th
348th
341st
345th
1st
553rd
234th
282nd
61st
223rd
184th
194th
180th
403rd
62nd
233rd
17th
32nd
24th
44th
245th
256th
1,068th
342nd
1,296th
Collatz
180th
588th
732nd
781st
158th
1,138th
772nd
30th
336th
9th
530th
142nd
325th
83rd
62nd
299th
CSS Colors
218th
200th
17th
296th
105th
314th
293rd
344th
185th
23rd
77th
128th
114th
176th
Cubes
67th
88th
387th
149th
10th
161st
267th
144th
Day of Week
198th
387th
143rd
572nd
258th
470th
466th
514th
380th
158th
1st
287th
688th
Diamonds
278th
204th
102nd
1,536th
210th
242nd
221st
186th
173rd
179th
211th
117th
405th
1st
143rd
197th
194th
80th
120th
176th
307th
239th
44th
149th
227th
134th
65th
374th
132nd
155th
178th
496th
105th
348thDivisors
1,587th
1,290th
780th
916th
4,226th
399th
386th
1,147th
1,389th
559th
760th
2,326th
745th
778th
812th
409th
1st
770th
477th
285th
1,614th
1,374th
712th
440th
712th
967th
377th
373rd
531st
22nd
526th
339th
482nd
1,824th
1,114th
1,131st
3,700th
1,279thEmirp Numbers
171st
139th
542nd
357th
930th
547th
91st
284th
176th
220th
115th
749th
436th
22nd
300th
4th
267th
144th
76th
151st
185th
212th
259th
465th
106th
111th
63rd
82nd
20th
27th
480th
628th
353rd
369th
257th
529thEmirp Numbers (Long)
73rd
164th
111th
54th
51st
57th
162nd
42nd
59th
103rd
126th
263rd
4th
105th
65th
140th
97th
36th
71st
213th
18th
23rd
Emojify
117th
81st
119th
102nd
21st
72nd
22nd
64th
Evil Numbers
2,251st
1,664th
297th
1,068th
2,548th
381st
459th
494th
645th
277th
964th
890th
433rd
409th
678th
1,451st
741st
135th
502nd
421st
262nd
975th
1st
446th
1,227th
338th
616th
260th
583rd
1,347th
515th
36th
757th
305th
396th
2,087th
580th
708th
1,024th
922ndEvil Numbers (Long)
624th
248th
486th
253rd
480th
536th
314th
270th
346th
634th
60th
433rd
202nd
1st
380th
240th
445th
192nd
225th
635th
368th
88th
588thFibonacci
139th
1,758th
284th
1,920th
5,284th
519th
330th
764th
1,991st
316th
825th
1,527th
1,434th
594th
1st
2,554th
268th
1,698th
476th
145th
3,701st
3,069th
919th
393rd
1,683rd
1,673rd
1,561st
280th
272nd
1,572nd
30th
4,236th
246th
258th
738th
2,028th
1,640th
805th
698th
2,250thFizz Buzz
3,863rd
1,250th
560th
3,576th
3,247th
540th
568th
2,902nd
1,724th
3,806th
2,731st
1,304th
3,492nd
1,013th
1,910th
16th
1,758th
1,041st
105th
2,304th
4,575th
1,463rd
995th
2,809th
2,404th
101st
511th
18th
47th
92nd
452nd
2,829th
4,098th
2,137th
2,903rd
2,888th
4,672ndFoo Fizz Buzz Bar
293rd
465th
433rd
614th
778th
451st
413th
961st
1st
693rd
385th
714th
1,146th
459th
362nd
794th
173rd
232nd
194th
10th
942nd
684th
780th
Forsyth–Edwards Notation
192nd
130th
131st
💎
97th
3rd
52nd
Fractions
149th
312th
322nd
325th
461st
278th
210th
375th
383rd
344th
144th
113th
249th
415th
587th
396th
524th
179th
166th
88th
229th
9th
368th
Game of Life
2nd
Gijswijt’s Sequence
49th
1st
188th
118th
Happy Numbers
218th
198th
808th
475th
1,341st
454th
284th
364th
130th
296th
156th
917th
530th
83rd
113th
403rd
257th
207th
533rd
523rd
1st
462nd
526th
603rd
720th
506th
123rd
164th
28th
262nd
69th
470th
946th
913th
656th
693rd
618thHappy Numbers (Long)
97th
708th
278th
357th
684th
375th
75th
142nd
215th
31st
87th
212th
194th
330th
1st
223rd
437th
237th
308th
297th
780th
287th
227th
563rd
Hexdump
250th
115th
33rd
146th
123rd
35th
86th
45th
26th
Intersection
140th
99th
176th
204th
213th
91st
111th
17th
629th
110th
48th
28th
114th
118th
200th
105th
107th
59th
182nd
32nd
660th
203rd
117th
Inventory Sequence
35th
86th
241st
264th
72nd
90th
289th
1st
133rd
116th
96th
15th
30th
44th
19th
174th
ISBN
271st
511th
709th
648th
225th
154th
298th
3rd
231st
98th
10th
273rd
316th
902nd
58th
212th
73rd
14th
204th
933rd
Jacobi Symbol
39th
9th
8th
78th
15th
60th
46th
116th
40th
94th
100th
91st
55th
82nd
17th
💎
43rd
98th
48th
5th
14th
85th
45th
58th
95th
10th
44th
41st
63rd
3rd
16th
6th
80th
73rd
67th
90th
59th
Kolakoski Constant
68th
53rd
103rd
75th
125th
172nd
59th
69th
4th
195th
99th
119th
122nd
83rd
83rd
109th
201st
39th
90th
42nd
20th
34th
127th
93rd
Kolakoski Sequence
60th
205th
56th
292nd
451st
119th
418th
381st
92nd
383rd
499th
282nd
286th
23rd
329th
126th
100th
1st
280th
377th
635th
53rd
63rd
63rd
217th
359th
341st
305th
643rd
Leap Years
766th
243rd
123rd
303rd
2,109th
553rd
118th
290th
658th
97th
1,815th
252nd
262nd
177th
418th
415th
193rd
484th
380th
163rd
31st
210th
731st
192nd
157th
1,069th
84th
114th
11th
805th
340th
78th
608th
146th
1,507th
283rd
388th
144th
1,643rdLevenshtein Distance
391st
449th
329th
81st
111th
141st
386th
186th
190th
319th
65th
505th
360th
3rd
287th
267th
Leyland Numbers
143rd
139th
363rd
388th
236th
324th
325th
229th
242nd
191st
540th
405th
1st
17th
267th
218th
101st
599th
240th
321st
507th
118th
222nd
20th
103rd
327th
753rd
404th
220th
ln 2
175th
170th
198th
153rd
244th
275th
252nd
212th
195th
132nd
218th
226th
1st
225th
176th
203rd
229th
90th
60th
142nd
235th
238th
227th
3rd
172nd
128th
263rd
21st
184th
319th
202nd
220th
206th
262nd
210th
Look and Say
229th
356th
194th
322nd
561st
251st
56th
350th
155th
405th
1st
570th
167th
316th
26th
189th
366th
433rd
7th
228th
92nd
325th
109th
36th
437th
118th
Lucky Numbers
120th
93rd
177th
190th
66th
137th
169th
12th
143rd
161st
91st
146th
166th
193rd
238th
31st
95th
35th
226th
147th
179th
174th
122nd
Lucky Tickets
86th
150th
137th
163rd
128th
144th
61st
104th
87th
101st
1st
22nd
119th
149th
29th
102nd
103rd
123rd
97th
91st
196th
25th
205th
151st
209th
127th
Maze
222nd
Medal Tally
77th
Morse Decoder
33rd
93rd
100th
108th
51st
90th
8th
83rd
17th
119th
15th
105th
22nd
62nd
38th
Morse Encoder
46th
232nd
128th
29th
2nd
241st
25th
8th
37th
172nd
27th
11th
24th
65th
Musical Chords
47th
139th
88th
94th
29th
77th
103rd
85th
60th
131st
104th
22nd
58th
180th
Niven Numbers
55th
544th
256th
835th
2,275th
741st
286th
923rd
1,025th
219th
1,317th
644th
609th
726th
861st
1st
266th
936th
618th
521st
81st
949th
1,319th
871st
314th
405th
971st
172nd
248th
334th
726th
30th
66th
818th
378th
1,763rd
479th
587th
1,263rd
1,341stNiven Numbers (Long)
203rd
402nd
465th
636th
482nd
654th
64th
486th
274th
514th
337th
12th
328th
312th
268th
361st
690th
515th
507th
447th
567th
557th
833rd
380th
597th
34th
75th
370th
561st
393rd
476th
802ndNumber Spiral
66th
157th
165th
108th
60th
76th
31st
1st
273rd
261st
166th
7th
203rd
207th
43rd
39th
89th
Odious Numbers
2,237th
1,572nd
256th
1,087th
2,123rd
177th
321st
619th
591st
211th
1,029th
742nd
371st
433rd
620th
937th
692nd
103rd
411th
356th
134th
705th
1st
419th
993rd
311th
624th
184th
310th
1,305th
438th
34th
633rd
262nd
244th
1,909th
512th
404th
1,285th
734thOdious Numbers (Long)
889th
215th
149th
246th
395th
492nd
156th
225th
356th
576th
86th
406th
105th
1st
315th
194th
422nd
147th
314th
494th
360th
32nd
486thOrdinal Numbers
265th
284th
561st
253rd
538th
492nd
335th
701st
351st
339th
375th
376th
745th
281st
316th
426th
40th
371st
453rd
300th
617th
843rd
34th
479th
196th
198th
86th
411th
858th
3rd
512th
621st
187th
Pangram Grep
303rd
868th
1,323rd
812th
859th
649th
285th
874th
195th
377th
559th
486th
528th
1st
142nd
580th
397th
306th
52nd
171st
436th
530th
178th
1,300th
69th
340th
279th
32nd
110th
186th
479th
199th
1,003rd
1,545th
Pascal’s Triangle
242nd
418th
384th
1,971st
356th
302nd
392nd
521st
299th
362nd
497th
796th
308th
90th
588th
1st
398th
317th
151st
366th
801st
209th
714th
206th
117th
416th
515th
35th
70th
94th
296th
551st
684th
465th
234th
870thPernicious Numbers
698th
477th
271st
645th
1,733rd
210th
294th
457th
747th
196th
958th
581st
581st
816th
513th
1st
867th
72nd
558th
536th
115th
772nd
795th
821st
274th
393rd
661st
175th
239th
96th
611th
24th
145th
159th
364th
1,369th
628th
415th
855th
738thPernicious Numbers (Long)
438th
298th
257th
92nd
270th
222nd
309th
59th
98th
191st
243rd
7th
39th
216th
260th
67th
277th
415th
214th
227th
367th
78th
118th
576th
112th
412th
253rd
183rd
327th
242nd
310thPoker
36th
160th
90th
44th
126th
48th
10th
30th
107th
7th
53rd
50th
Prime Numbers
987th
511th
312th
827th
2,397th
438th
628th
890th
676th
400th
826th
509th
222nd
1,304th
964th
519th
266th
1st
556th
357th
127th
1,315th
3,613th
529th
282nd
468th
982nd
249th
257th
1,285th
1,022nd
91st
165th
178th
304th
1,472nd
1,294th
534th
482nd
1,160thPrime Numbers (Long)
631st
375th
823rd
678th
551st
281st
455th
725th
564th
913th
120th
495th
604th
365th
1st
483rd
349th
140th
1,002nd
1,680th
535th
571st
800th
629th
607th
301st
80th
157th
226th
417th
Proximity Grid
65th
92nd
22nd
QR Decoder
152nd
86th
9th
130th
Quine
1st
1,533rd
216th
2,374th
1,740th
3,173rd
1,234th
1,687th
2,154th
1,396th
1,382nd
1,622nd
2,749th
129th
1,021st
501st
1,618th
1,340th
192nd
1,182nd
4,051st
1,042nd
1,104th
1,431st
1,492nd
446th
1,626th
2,902nd
1,551st
141st
3,096th
388th
1,285th
1,467th
1,387th
4,040th
122nd
Recamán
78th
86th
243rd
203rd
126th
245th
322nd
358th
412th
114th
348th
497th
4th
400th
170th
136th
159th
237th
355th
26th
60th
81st
10th
706th
248th
118th
158th
Repeating Decimals
34th
1st
Reverse Polish Notation
507th
242nd
347th
98th
1st
227th
322nd
202nd
310th
77th
159th
139th
63rd
350th
Rijndael S-box
94th
59th
65th
Rock-paper-scissors-Spock-lizard
96th
70th
154th
91st
74th
124th
5th
52nd
175th
85th
86th
142nd
43rd
33rd
35th
12th
68th
131st
51st
Roman to Arabic
169th
316th
247th
134th
396th
335th
137th
341st
9th
267th
248th
💎
82nd
216th
254th
47th
268th
318th
400th
121st
72nd
97th
83rd
151st
49th
236th
407th
273rd
231st
Rule 110
101st
102nd
150th
144th
294th
199th
340th
236th
119th
141st
258th
77th
147th
261st
31st
122nd
237th
204th
155th
149th
80th
44th
60th
88th
222nd
172nd
290th
192nd
162nd
Seven Segment
81st
305th
184th
67th
172nd
121st
24th
73rd
60th
2nd
52nd
139th
27th
66th
50th
49th
157th
82nd
25th
20th
3rd
94th
15th
74th
56th
53rd
71st
Sierpiński Triangle
70th
68th
157th
30th
153rd
82nd
220th
104th
252nd
166th
136th
231st
144th
212th
55th
127th
167th
5th
23rd
132nd
61st
102nd
172nd
14th
36th
94th
24th
45th
137th
162nd
186th
283rd
301st
91st
Smith Numbers
59th
96th
140th
137th
124th
118th
62nd
81st
10th
210th
127th
80th
43rd
85th
90th
141st
97th
132nd
67th
108th
118th
594th
Spelling Numbers
140th
157th
203rd
167th
360th
102nd
1st
143rd
155th
293rd
116th
193rd
112th
194th
159th
Star Wars Opening Crawl
94th
70th
27th
3rd
28th
66th
5th
Sudoku
38th
61st
83rd
11th
27th
Sudoku v2
51st
101st
83rd
2nd
79th
121st
15th
9th
26th
Ten-pin Bowling
61st
80th
124th
60th
58th
57th
2nd
87th
114th
19th
74th
107th
85th
21st
46th
17th
31st
6th
14th
73rd
75th
Time Distance
165th
203rd
60th
29th
Tongue-twisters
100th
223rd
372nd
61st
201st
77th
514th
6th
199th
125th
218th
382nd
97th
15th
235th
104th
29th
United States
43rd
39th
139th
252nd
201st
22nd
122nd
147th
84th
297th
136th
32nd
205th
65th
203rd
25th
150th
21st
81st
24th
16th
20th
Vampire Numbers
74th
41st
104th
120th
28th
53rd
140th
💎
86th
309th
145th
91st
178th
142nd
11th
33rd
6th
17th
36th
58th
Van Eck Sequence
230th
209th
190th
237th
245th
281st
361st
142nd
205th
1st
25th
267th
199th
110th
186th
304th
332nd
238th
117th
87th
8th
444th
47th
327th
149th
Zodiac Signs
26th
74th
189th
81st
109th
💎
119th
30th
63rd
γ
202nd
1st
75th
196th
λ
912th
96th
86th
838th
474th
871st
125th
186th
63rd
27th
204th
867th
65th
66th
1,373rd
113th
141st
146th
21st
28th
266th
305th
303rd
12th
58th
36th
149th
17th
173rd
298th
267th
302nd
307th
75th
346thπ
521st
209th
170th
213th
1,386th
109th
198th
215th
277th
396th
304th
144th
244th
174th
68th
278th
4th
262nd
138th
71st
23rd
85th
295th
302nd
248th
147th
83rd
427th
63rd
113th
317th
192nd
211th
202nd
268th
505th
τ
452nd
207th
183rd
217th
910th
157th
227th
223rd
260th
370th
259th
120th
226th
173rd
23rd
275th
4th
249th
170th
60th
25th
91st
284th
301st
241st
97th
70th
399th
64th
89th
302nd
201st
224th
230th
238th
463rd
φ
469th
312th
258th
330th
1,260th
249th
254th
445th
364th
505th
350th
159th
313th
299th
1st
192nd
126th
366th
381st
111th
77th
230th
386th
415th
353rd
12th
224th
145th
517th
29th
7th
62nd
290th
304th
303rd
717th
328th
√2
505th
334th
420th
332nd
1,448th
286th
440th
499th
390th
524th
315th
202nd
341st
233rd
💎
204th
2nd
386th
256th
149th
116th
414th
417th
446th
353rd
11th
170th
532nd
32nd
101st
108th
465th
331st
314th
418th
741st
𝑒
382nd
240th
218th
282nd
1,269th
226th
311th
267th
335th
405th
222nd
204th
309th
243rd
10th
259th
143rd
291st
247th
125th
15th
206th
275th
270th
303rd
160th
215th
156th
351st
55th
116th
203rd
257th
283rd
266th
269th
522nd
366th