12 Days of Christmas
89th
92nd
50th
65th
99 Bottles of Beer
36th
Abundant Numbers
13th
40th
31st
20th
12th
14th
17th
43rd
9th
84th
12th
48th
8th
20th
16th
Abundant Numbers (Long)
12th
26th
19th
18th
9th
9th
10th
24th
3rd
47th
10th
28th
6th
15th
10th
Arabic to Roman
67th
Arithmetic Numbers
5th
ASCII Table
24th
Catalan Numbers
15th
14th
Catalan’s Constant
1st
5th
6th
Christmas Trees
66th
29th
Collatz
6th
48th
3rd
23rd
10th
14th
10th
23rd
3rd
59th
14th
13th
30th
51st
43rd
12th
7th
19th
13th
CSS Colors
13th
Cubes
12th
Day of Week
1st
1st
Diamonds
29th
54th
Divisors
14th
87th
64th
30th
13th
20th
18th
54th
56th
75th
21st
34th
81st
1st
142nd
1st
33rd
3rd
19th
15th
Emirp Numbers
19th
Emirp Numbers (Long)
23rd
Emojify
12th
Evil Numbers
15th
18th
7th
10th
19th
1st
1st
17th
7th
36th
13th
21st
33rd
1st
162nd
49th
20th
20th
21st
4th
Evil Numbers (Long)
16th
22nd
6th
12th
13th
1st
11th
24th
18th
98th
16th
16th
49th
28th
14th
11th
13th
3rd
Fibonacci
10th
17th
9th
4th
31st
2nd
37th
1st
1st
31st
1st
23rd
1st
67th
107th
21st
48th
91st
1st
54th
106th
29th
1st
17th
10th
Fizz Buzz
1st
18th
1st
30th
234th
15th
44th
20th
40th
49th
160th
48th
266th
1st
99th
9th
73rd
19th
45th
181st
46th
284th
86th
103rd
32nd
43rd
26th
Foo Fizz Buzz Bar
34th
1st
Fractions
27th
Happy Numbers
27th
5th
40th
1st
Happy Numbers (Long)
22nd
Inventory Sequence
24th
ISBN
10th
22nd
10th
Kolakoski Constant
5th
Kolakoski Sequence
1st
11th
Leap Years
14th
39th
9th
81st
52nd
33rd
9th
14th
18th
17th
20th
22nd
41st
63rd
38th
128th
45th
22nd
67th
32nd
27th
40th
35th
90th
228th
20th
35th
94th
73rd
22nd
30th
13th
18th
12th
23rd
20th
Levenshtein Distance
38th
Leyland Numbers
13th
4th
Lucky Numbers
13th
30th
Niven Numbers
1st
1st
19th
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
1st
Niven Numbers (Long)
32nd
Odious Numbers
16th
18th
7th
7th
9th
1st
1st
19th
6th
34th
11th
21st
39th
1st
114th
43rd
19th
20th
21st
4th
Odious Numbers (Long)
18th
16th
6th
6th
6th
1st
10th
21st
18th
10th
16th
19th
1st
41st
20th
13th
11th
13th
3rd
Ordinal Numbers
25th
Pangram Grep
23rd
44th
13th
16th
15th
17th
22nd
28th
115th
19th
13th
42nd
42nd
80th
8th
12th
Pascal’s Triangle
19th
25th
Pernicious Numbers
1st
1st
1st
1st
1st
1st
1st
1st
6th
1st
1st
4th
1st
1st
9th
8th
1st
1st
1st
1st
1st
1st
22nd
1st
10th
1st
17th
1st
1st
12th
1st
1st
1st
Pernicious Numbers (Long)
21st
39th
Prime Numbers
15th
11th
111th
64th
26th
14th
18th
1st
23rd
1st
1st
1st
1st
18th
174th
1st
47th
77th
7th
1st
1st
72nd
36th
1st
20th
21st
Prime Numbers (Long)
14th
67th
40th
23rd
13th
15th
11th
1st
24th
1st
7th
82nd
18th
23rd
64th
42nd
19th
4th
18th
1st
Quine
19th
1st
5th
5th
52nd
84th
4th
Recamán
26th
Roman to Arabic
12th
Seven Segment
17th
Spelling Numbers
80th
Time Distance
13th
Tongue-twisters
34th
17th
United States
13th
Van Eck Sequence
25th
γ
1st
λ
6th
10th
π
1st
6th
58th
9th
τ
6th
43rd
9th
φ
1st
6th
46th
9th
√2
6th
45th
10th
𝑒
1st
6th
19th
50th
8th