12 Days of Christmas
42nd
99 Bottles of Beer
467th
24th
Abundant Numbers
48th
Arabic to Roman
32nd
brainfuck
19th
Christmas Trees
69th
CSS Colors
33rd
Cubes
28th
Diamonds
51st
Divisors
463rd
70th
Emirp Numbers
82nd
Evil Numbers
49th
Fibonacci
59th
Fizz Buzz
1,098th
76th
Happy Numbers
72nd
Leap Years
21st
Leyland Numbers
36th
Lucky Tickets
Morse Decoder
22nd
Morse Encoder
24th
Niven Numbers
41st
Odious Numbers
43rd
Ordinal Numbers
1st
21st
Pangram Grep
54th
Pascal’s Triangle
37th
Pernicious Numbers
48th
Prime Numbers
58th
Quine
95th
99th
Rock-paper-scissors-Spock-lizard
33rd
Roman to Arabic
36th
Rule 110
26th
Seven Segment
20th
Sierpiński Triangle
23rd
Spelling Numbers
14th
Sudoku
47th
14th
United States
30th
Vampire Numbers
25th
λ
22nd
π
38th
τ
36th29th
φ
36th
√2
30th
𝑒
36th