Fishron

12 Days of Christmas

Abundant Numbers

Abundant Numbers (Long)

Arabic to Roman

Arrows

brainfuck

Christmas Trees

Collatz

Diamonds

Divisors

Emirp Numbers

Emirp Numbers (Long)

Evil Numbers

Evil Numbers (Long)

Fibonacci

Fizz Buzz

Foo Fizz Buzz Bar

Fractions

Happy Numbers

Happy Numbers (Long)

Intersection

Kolakoski Sequence

Leap Years

Leyland Numbers

Look and Say

Lucky Numbers

Niven Numbers

Niven Numbers (Long)

Odious Numbers

Odious Numbers (Long)

Ordinal Numbers

Pangram Grep

Pascal’s Triangle

Pernicious Numbers

Pernicious Numbers (Long)

Prime Numbers

Prime Numbers (Long)

Quine

Recamán

Roman to Arabic

Smith Numbers

Spelling Numbers

Vampire Numbers

Van Eck Sequence

π

√2

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