Abundant Numbers
685
Arithmetic Numbers
698
Christmas Trees
581
Collatz
753
Divisors
597
Emirp Numbers
476
Emirp Numbers (Long)
534
Evil Numbers
871
Evil Numbers (Long)
848
Fibonacci
932
Fizz Buzz
890
Foo Fizz Buzz Bar
783
Kaprekar Numbers
126
Niven Numbers
704
Niven Numbers (Long)
767
Odious Numbers
849
Odious Numbers (Long)
844
PalindromemordnilaP
629
Pernicious Numbers
749
Pernicious Numbers (Long)
766
Prime Numbers
643
Prime Numbers (Long)
678
Tongue-twisters
276