12 Days of Christmas
44th
99 Bottles of Beer
480th
23rd
Abundant Numbers
52nd
Arabic to Roman
34th
brainfuck
19th
Christmas Trees
73rd
CSS Colors
36th
Cubes
31st
Diamonds
58th
Divisors
473rd
75th
Emirp Numbers
89th
Evil Numbers
54th
Fibonacci
63rd
Fizz Buzz
1,135th
80th
Happy Numbers
75th
Leap Years
21st
Leyland Numbers
42nd
Lucky Tickets
Morse Decoder
24th
Morse Encoder
27th
Niven Numbers
42nd
Odious Numbers
47th
Ordinal Numbers
1st
22nd
Pangram Grep
57th
Pascal’s Triangle
39th
Pernicious Numbers
54th
Prime Numbers
62nd
Quine
103rd
95th
Rock-paper-scissors-Spock-lizard
36th
Roman to Arabic
40th
Rule 110
29th
Seven Segment
21st
Sierpiński Triangle
25th
Spelling Numbers
15th
Sudoku
50th
15th
United States
35th
Vampire Numbers
26th
λ
24th
π
τ
36th
φ
√2
𝑒
37th