12 Days of Christmas
11th
21st
145th
54th
88th
11th
21st
8th
11th
58th
47th
12th
98th
307th
30th
16th
36th
49th
28th
15th
34th
45th
19th
6th
752nd
33rd
76th
69th
14th
41st
20th
11th
11th
99 Bottles of Beer
42nd
6th
Abundant Numbers
53rd
11th
9th
386th
63rd
Abundant Numbers (Long)
6th
5th
Arithmetic Numbers
21st
59th
1st
4th
170th
ASCII Table
26th
6th
255th
brainfuck
7th
Catalan Numbers
10th
215th
Catalan’s Constant
7th
Collatz
7th
CSS Colors
15th
6th
Cubes
25th
Day of Week
22nd
1st
3rd
Diamonds
45th
Divisors
11th
801st
Emirp Numbers
19th
10th
Emirp Numbers (Long)
8th
4th
Emojify
16th
Evil Numbers
33rd
19th
10th
Evil Numbers (Long)
41st
16th
1st
Factorial Factorisation
8th
3rd
Farey Sequence
2nd
5th
Fibonacci
36th
11th
129th
50th
Fizz Buzz
70th
Happy Numbers
17th
Happy Numbers (Long)
20th
Intersection
9th
Kolakoski Constant
11th
8th
Leap Years
128th
1st
12th
Leyland Numbers
20th
12th
6th
114th
ln 2
9th
6th
Look and Say
11th
8th
250th
Niven Numbers
27th
22nd
11th
Niven Numbers (Long)
5th
10th
Odious Numbers
56th
24th
1st
197th
9th
Odious Numbers (Long)
40th
17th
1st
Ordinal Numbers
8th
Pangram Grep
374th
Pernicious Numbers
41st
29th
11th
254th
Prime Numbers
1st
21st
17th
Prime Numbers (Long)
1st
Recamán
22nd
13th
6th
215th
Reverse Polish Notation
9th
Seven Segment
13th
201st
Smith Numbers
5th
Spelling Numbers
5th
Tongue-twisters
7th
16th
United States
5th
Vampire Numbers
8th
4th
6th
96th
γ
7th
3rd
λ
12th
4th
π
13th
8th
τ
14th
φ
11th
12th
261st
√2
14th
9th
70th
47th
𝑒
24th
11th
10th