12 Days of Christmas
53rd
99 Bottles of Beer
503rd
37th
Abundant Numbers
58th
Arabic to Roman
43rd
brainfuck
30th
Christmas Trees
82nd
CSS Colors
38th
Cubes
40th
Diamonds
70th
Divisors
491st
88th
Emirp Numbers
36th
Evil Numbers
61st
Fibonacci
70th
Fizz Buzz
1,175th
84th
Happy Numbers
58th
Leap Years
24th
Leyland Numbers
48th
Lucky Tickets
Morse Decoder
27th
Morse Encoder
29th
Niven Numbers
52nd
Odious Numbers
54th
Ordinal Numbers
1st
27th
Pangram Grep
63rd
Pascal’s Triangle
46th
Pernicious Numbers
65th
Prime Numbers
72nd
Quine
111th
103rd
Rock-paper-scissors-Spock-lizard
39th
Roman to Arabic
45th
Rule 110
38th
Seven Segment
30th
Sierpiński Triangle
29th
Spelling Numbers
22nd
Sudoku
57th
19th
United States
39th
Vampire Numbers
35th
λ
29th
π
τ
38th
φ
√2
𝑒
43rd