12 Days of Christmas
28th
99 Bottles of Beer
11th
Abundant Numbers
19th
brainfuck
5th
Divisors
19th
Emirp Numbers
33rd
Evil Numbers
29th
Fibonacci
19th
Fizz Buzz
19th
Happy Numbers
33rd
Leap Years
34th
Niven Numbers
15th
Odious Numbers
26th
Ordinal Numbers
11th
Pangram Grep
4th
Pascal’s Triangle
22nd
Pernicious Numbers
34th
Poker
6th
Prime Numbers
21st
Quine
1st
United States
11th