12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Arabic to Roman
brainfuck
Catalan Numbers
Catalan’s Constant
Christmas Trees
CSS Colors
12th
105th
10th
Cubes
5th
100th
Diamonds
Divisors
Emirp Numbers
Emojify
5th
38th
3rd
Evil Numbers
24th
107th
34th
Fibonacci
89th
147th
147th
42nd
Fizz Buzz
75th
172nd
137th
37th
Foo Fizz Buzz Bar
Fractions
Happy Numbers
Intersection
8th
170th
Jacobi Symbol
Kolakoski Constant
Kolakoski Sequence
17th
199th
Leap Years
22nd
92nd
16th
Levenshtein Distance
7th
98th
6th
Leyland Numbers
Look and Say
Lucky Tickets
5th
83rd
8th
Morse Encoder
Niven Numbers
24th
174th
30th
Niven Numbers (Long)
Odious Numbers
22nd
78th
32nd
Ordinal Numbers
11th
160th
16th
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
36th
276th
39th
Prime Numbers
Prime Numbers (Long)
22nd
132nd
Quine
Recamán
6th
92nd
7th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
Seven Segment
Sierpiński Triangle
Spelling Numbers
Sudoku
Tongue-twisters
United States
9th
40th
3rd
Vampire Numbers
9th
140th
11th
Van Eck Sequence
λ
11th
56th
13th
π
5th
58th
τ
5th
53rd
φ
8th
89th
12th
√2
16th
109th
𝑒
13th
131st
16th