12 Days of Christmas
43rd
99 Bottles of Beer
479th
22nd
Abundant Numbers
52nd
Arabic to Roman
34th
brainfuck
19th
Christmas Trees
71st
CSS Colors
35th
Cubes
30th
Diamonds
57th
Divisors
471st
74th
Emirp Numbers
88th
Evil Numbers
53rd
Fibonacci
63rd
Fizz Buzz
1,130th
80th
Happy Numbers
75th
Leap Years
21st
Leyland Numbers
41st
Lucky Tickets
Morse Decoder
24th
Morse Encoder
27th
Niven Numbers
42nd
Odious Numbers
46th
Ordinal Numbers
1st
22nd
Pangram Grep
57th
Pascal’s Triangle
39th
Pernicious Numbers
53rd
Prime Numbers
62nd
Quine
103rd
110th
Rock-paper-scissors-Spock-lizard
36th
Roman to Arabic
40th
Rule 110
29th
Seven Segment
21st
Sierpiński Triangle
24th
Spelling Numbers
15th
Sudoku
50th
15th
United States
35th
Vampire Numbers
26th
λ
24th
π
39th
τ
36th30th
φ
39th
√2
32nd
𝑒
37th