sultan

12 Days of Christmas

99 Bottles of Beer

Abundant Numbers

Abundant Numbers (Long)

Arabic to Roman

Arithmetic Numbers

Ascending Primes

ASCII Table

Catalan Numbers

Christmas Trees

Collatz

Day of Week

Diamonds

Divisors

Emirp Numbers

Emirp Numbers (Long)

Evil Numbers

Evil Numbers (Long)

Factorial Factorisation

Farey Sequence

Fibonacci

Fizz Buzz

Foo Fizz Buzz Bar

Fractions

Game of Life

Happy Numbers

Happy Numbers (Long)

Hexdump

ISBN

Leap Years

ln 2

Look and Say

Lucky Numbers

Niven Numbers

Niven Numbers (Long)

Number Spiral

Odious Numbers

Odious Numbers (Long)

Ordinal Numbers

Pascal’s Triangle

Pernicious Numbers

Pernicious Numbers (Long)

Prime Numbers

Prime Numbers (Long)

Roman to Arabic

Seven Segment

Spelling Numbers

Tongue-twisters

Zodiac Signs

π

τ

φ

√2

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