Abundant Numbers
688
Arithmetic Numbers
705
Christmas Trees
584
Collatz
756
Divisors
611
Emirp Numbers
478
Emirp Numbers (Long)
538
Evil Numbers
873
Evil Numbers (Long)
851
Fibonacci
935
Fizz Buzz
891
Foo Fizz Buzz Bar
784
Kaprekar Numbers
129
Niven Numbers
708
Niven Numbers (Long)
775
Odious Numbers
852
Odious Numbers (Long)
849
PalindromemordnilaP
638
Pernicious Numbers
753
Pernicious Numbers (Long)
776
Prime Numbers
644
Prime Numbers (Long)
680
Tongue-twisters
276