99 Bottles of Beer
Arithmetic Numbers
Christmas Trees
Collatz
Divisors
Emirp Numbers
Emirp Numbers (Long)
Evil Numbers
Evil Numbers (Long)
Fibonacci
145th
Fizz Buzz
Foo Fizz Buzz Bar
Happy Numbers
Happy Numbers (Long)
Look and Say
Niven Numbers
Niven Numbers (Long)
Ordinal Numbers
17th
Pangram Grep
Pernicious Numbers (Long)
Prime Numbers
Prime Numbers (Long)
Vampire Numbers
Van Eck Sequence
√2