petroselo

12 Days of Christmas

99 Bottles of Beer

Abundant Numbers

ASCII Table

Catalan Numbers

Christmas Trees

Diamonds

Divisors

Emirp Numbers

Evil Numbers

Fibonacci

Fizz Buzz

Foo Fizz Buzz Bar

Fractions

Happy Numbers

Happy Numbers (Long)

Intersection

ISBN

Kolakoski Constant

Kolakoski Sequence

Leap Years

Leyland Numbers

Niven Numbers

Odious Numbers

Ordinal Numbers

Pangram Grep

Pernicious Numbers

Prime Numbers

Prime Numbers (Long)

Recamán

Reverse Polish Notation

Roman to Arabic

Smith Numbers

Spelling Numbers

Time Distance

Tongue-twisters

Vampire Numbers

Van Eck Sequence

π

φ

√2