Abundant Numbers
700
Arithmetic Numbers
721
Christmas Trees
593
Collatz
770
Divisors
621
Emirp Numbers
487
Emirp Numbers (Long)
553
Evil Numbers
889
Evil Numbers (Long)
872
Fibonacci
947
Fizz Buzz
898
Foo Fizz Buzz Bar
795
Kaprekar Numbers
133
Niven Numbers
721
Niven Numbers (Long)
794
Odious Numbers
870
Odious Numbers (Long)
872
PalindromemordnilaP
663
Pernicious Numbers
769
Pernicious Numbers (Long)
797
Prime Numbers
656
Prime Numbers (Long)
698
Tongue-twisters
278