12 Days of Christmas
47th
99 Bottles of Beer
497th
29th
Abundant Numbers
55th
Arabic to Roman
39th
brainfuck
21st
Christmas Trees
79th
CSS Colors
40th
Cubes
36th
Diamonds
67th
Divisors
487th
84th
Emirp Numbers
93rd
Evil Numbers
58th
Fibonacci
66th
Fizz Buzz
1,166th
83rd
Happy Numbers
79th
Leap Years
21st
Leyland Numbers
46th
Lucky Tickets
Morse Decoder
29th
Morse Encoder
32nd
Niven Numbers
48th
Odious Numbers
52nd
Ordinal Numbers
1st
25th
Pangram Grep
61st
Pascal’s Triangle
43rd
Pernicious Numbers
60th
Prime Numbers
68th
Quine
108th
101st
Rock-paper-scissors-Spock-lizard
41st
Roman to Arabic
42nd
Rule 110
35th
Seven Segment
26th
Sierpiński Triangle
27th
Spelling Numbers
18th
Sudoku
53rd
17th
United States
37th
Vampire Numbers
30th
λ
28th
π
τ
37th
φ
√2
𝑒
42nd