Abundant Numbers
718
Arithmetic Numbers
816
Christmas Trees
671
Collatz
836
Divisors
645
Emirp Numbers
581
Emirp Numbers (Long)
647
Evil Numbers
873
Evil Numbers (Long)
851
Fibonacci
935
Fizz Buzz
977
Foo Fizz Buzz Bar
986
Kaprekar Numbers
150
Niven Numbers
710
Niven Numbers (Long)
776
Odious Numbers
852
Odious Numbers (Long)
849
PalindromemordnilaP
782
Pernicious Numbers
753
Pernicious Numbers (Long)
791
Prime Numbers
644
Prime Numbers (Long)
680
Tongue-twisters
497