12 Days of Christmas
338th
99 Bottles of Beer
154th
Abundant Numbers
55th
Arabic to Roman
68th
brainfuck
84th
Christmas Trees
111th
CSS Colors
27th
Divisors
163rd
Evil Numbers
143rd
Fibonacci
117th
Fizz Buzz
395th
Leap Years
97th
Leyland Numbers
42nd
Niven Numbers
119th
Odious Numbers
124th
Ordinal Numbers
73rd
Pangram Grep
100th
Pernicious Numbers
79th
Prime Numbers
178th
Quine
183rd
Rock-paper-scissors-Spock-lizard
71st
Seven Segment
61st
Spelling Numbers
40th
United States
λ
79th
π
175th