lmolteno

12 Days of Christmas

99 Bottles of Beer

Abundant Numbers

Christmas Trees

Divisors

Evil Numbers

Fibonacci

Fizz Buzz

Leap Years

Look and Say

Niven Numbers

Odious Numbers

Ordinal Numbers

Pangram Grep

Recamán

Rock-paper-scissors-Spock-lizard

Roman to Arabic

Tongue-twisters

φ

√2