wrhm

12 Days of Christmas

99 Bottles of Beer

Abundant Numbers

Arabic to Roman

Christmas Trees

Diamonds

Divisors

Emirp Numbers

Emojify

Evil Numbers

Fibonacci

Fizz Buzz

Happy Numbers

Leap Years

Leyland Numbers

Look and Say

Morse Decoder

Morse Encoder

Niven Numbers

Odious Numbers

Ordinal Numbers

Pangram Grep

Pascal’s Triangle

Pernicious Numbers

Poker

Prime Numbers

Rock-paper-scissors-Spock-lizard

Roman to Arabic

Rule 110

Seven Segment

Sierpiński Triangle

Tongue-twisters

United States

Vampire Numbers