12 Days of Christmas
brainfuck
Catalan Numbers
Collatz
Day of Week
Divisors
Fibonacci
5,179th1,072nd
Fizz Buzz
Foo Fizz Buzz Bar
Fractions
Hexdump
Leap Years
Leyland Numbers
PalindromemordnilaP
Pangram Grep
Quine
2,526th673rd2,336th
Van Eck Sequence