12 Days of Christmas
15th
Abundant Numbers
61st
brainfuck
25th
Christmas Trees
23rd
Diamonds
17th
Divisors
69th
Emirp Numbers
39th
Evil Numbers
73rd
Fizz Buzz
114th
Leap Years
84th
Odious Numbers
62nd
Ordinal Numbers
27th
Pernicious Numbers
41st
Prime Numbers
55th
Quine
15th
Rock-paper-scissors-Spock-lizard
15th
Rule 110
21st
Sierpiński Triangle
23rd