Abundant Numbers
686
Arithmetic Numbers
687
Christmas Trees
581
Collatz
727
Divisors
597
Emirp Numbers
476
Emirp Numbers (Long)
525
Evil Numbers
872
Evil Numbers (Long)
848
Fibonacci
933
Fizz Buzz
890
Foo Fizz Buzz Bar
781
Kaprekar Numbers
126
Niven Numbers
704
Niven Numbers (Long)
768
Odious Numbers
849
Odious Numbers (Long)
845
PalindromemordnilaP
630
Pernicious Numbers
749
Pernicious Numbers (Long)
737
Prime Numbers
643
Prime Numbers (Long)
678
Tongue-twisters
276