12 Days of Christmas
51st
99 Bottles of Beer
501st
36th
Abundant Numbers
55th
Arabic to Roman
43rd
brainfuck
30th
Christmas Trees
82nd
CSS Colors
38th
Cubes
40th
Diamonds
69th
Divisors
490th
86th
Emirp Numbers
35th
Evil Numbers
58th
Fibonacci
68th
Fizz Buzz
1,170th
83rd
Happy Numbers
56th
Leap Years
22nd
Leyland Numbers
48th
Lucky Tickets
Morse Decoder
27th
Morse Encoder
29th
Niven Numbers
50th
Odious Numbers
52nd
Ordinal Numbers
1st
26th
Pangram Grep
61st
Pascal’s Triangle
44th
Pernicious Numbers
62nd
Prime Numbers
70th
Quine
108th
102nd
Rock-paper-scissors-Spock-lizard
38th
Roman to Arabic
45th
Rule 110
37th
Seven Segment
30th
Sierpiński Triangle
28th
Spelling Numbers
22nd
Sudoku
55th
19th
United States
39th
Vampire Numbers
35th
λ
29th
π
τ
37th
φ
√2
𝑒
42nd