Abundant Numbers
Arithmetic Numbers
Arrows
brainfuck
Collatz
671
Divisors
Emirp Numbers
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
Fractions
Leap Years
Niven Numbers
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
Pangram Grep
Prime Numbers
Prime Numbers (Long)
Quine
RecamΓ‘n
Tongue-twisters
Ο
β2
π