12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Arabic to Roman
brainfuck
Catalan Numbers
Catalan’s Constant
Christmas Trees
CSS Colors
12th
89th
10th
Cubes
5th
78th
Diamonds
Divisors
Emirp Numbers
Emojify
6th
49th
4th
Evil Numbers
24th
107th
34th
Fibonacci
83rd
147th
147th
42nd
Fizz Buzz
75th
49th
137th
37th
Foo Fizz Buzz Bar
Fractions
Happy Numbers
Intersection
8th
155th
Jacobi Symbol
Kolakoski Constant
Kolakoski Sequence
17th
196th
Leap Years
19th
92nd
16th
Levenshtein Distance
7th
83rd
6th
Leyland Numbers
Look and Say
Lucky Tickets
5th
69th
8th
Morse Encoder
Niven Numbers
24th
174th
30th
Niven Numbers (Long)
Odious Numbers
22nd
78th
32nd
Ordinal Numbers
11th
140th
16th
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
36th
273rd
39th
Prime Numbers
Prime Numbers (Long)
22nd
132nd
Quine
Recamán
6th
59th
7th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
Seven Segment
Sierpiński Triangle
Spelling Numbers
Sudoku
Tongue-twisters
United States
9th
9th
2nd
Vampire Numbers
5th
136th
10th
Van Eck Sequence
λ
6th
29th
9th
π
5th
50th
τ
5th
46th
φ
4th
86th
10th
√2
1st
96th
𝑒
13th
111th
16th