12 Days of Christmas
15th
Abundant Numbers
64th
brainfuck
26th
Christmas Trees
23rd
Diamonds
17th
Divisors
73rd
Emirp Numbers
40th
Evil Numbers
73rd
Fizz Buzz
118th
Leap Years
87th
Odious Numbers
63rd
Ordinal Numbers
28th
Pernicious Numbers
46th
Prime Numbers
58th
Quine
20th
Rock-paper-scissors-Spock-lizard
16th
Rule 110
21st
Sierpiński Triangle
23rd