12 Days of Christmas
49th
99 Bottles of Beer
491st
35th
Abundant Numbers
54th
Arabic to Roman
40th
brainfuck
29th
Christmas Trees
78th
CSS Colors
34th
Cubes
36th
Diamonds
64th
Divisors
483rd
81st
Emirp Numbers
33rd
Evil Numbers
58th
Fibonacci
65th
Fizz Buzz
1,151st
83rd
Happy Numbers
55th
Leap Years
22nd
Leyland Numbers
46th
Lucky Tickets
Morse Decoder
24th
Morse Encoder
26th
Niven Numbers
46th
Odious Numbers
52nd
Ordinal Numbers
1st
25th
Pangram Grep
60th
Pascal’s Triangle
42nd
Pernicious Numbers
59th
Prime Numbers
66th
Quine
108th
100th
Rock-paper-scissors-Spock-lizard
35th
Roman to Arabic
43rd
Rule 110
34th
Seven Segment
26th
Sierpiński Triangle
25th
Spelling Numbers
21st
Sudoku
52nd
17th
United States
36th
Vampire Numbers
32nd
λ
26th
π
τ
36th
φ
√2
𝑒
38th