harperse

12 Days of Christmas

99 Bottles of Beer

Abundant Numbers

Collatz

Day of Week

Divisors

Emirp Numbers

Emirp Numbers (Long)

Emojify

Evil Numbers

Evil Numbers (Long)

Fibonacci

Fizz Buzz

Foo Fizz Buzz Bar

Forsyth–Edwards Notation

Fractions

Hexdump

ISBN

Leap Years

Leyland Numbers

Look and Say

Morse Decoder

Morse Encoder

Number Spiral

Odious Numbers

Odious Numbers (Long)

Ordinal Numbers

Pangram Grep

Pascal’s Triangle

Prime Numbers

Prime Numbers (Long)

Rock-paper-scissors-Spock-lizard

Seven Segment

Spelling Numbers

Tongue-twisters

λ

π