ludwig-n

12 Days of Christmas

99 Bottles of Beer

Abundant Numbers

Arabic to Roman

brainfuck

Christmas Trees

CSS Colors

Diamonds

Divisors

Emirp Numbers

Evil Numbers

Fibonacci

Fizz Buzz

Happy Numbers

Leap Years

Look and Say

Niven Numbers

Odious Numbers

Pangram Grep

Pascal’s Triangle

Pernicious Numbers

Prime Numbers

Quine

Roman to Arabic

Rule 110

Seven Segment

Tongue-twisters

Vampire Numbers