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Abundant Numbers

Catalan Numbers

Collatz

Divisors

Evil Numbers

Evil Numbers (Long)

Fibonacci

Fizz Buzz

Fractions

Hexdump

Intersection

Leap Years

Look and Say

Niven Numbers

Odious Numbers

Odious Numbers (Long)

Pangram Grep

Pascal’s Triangle

Prime Numbers

Quine

Recamán

Rock-paper-scissors-Spock-lizard

Seven Segment

Van Eck Sequence