12 Days of Christmas
66th
99 Bottles of Beer
169th
Abundant Numbers
53rd
Arabic to Roman
72nd
brainfuck
101st
Christmas Trees
108th
CSS Colors
21st
Divisors
157th
Evil Numbers
139th
Fibonacci
112th
Fizz Buzz
381st
Leap Years
93rd
Leyland Numbers
44th
Niven Numbers
110th
Odious Numbers
120th
Ordinal Numbers
69th
Pangram Grep
95th
Pernicious Numbers
77th
Prime Numbers
169th
Quine
179th
Rock-paper-scissors-Spock-lizard
69th
Seven Segment
67th
Spelling Numbers
52nd
United States
λ
44th
π
152nd