Collatz
906
Divisors
795
Evil Numbers
610850
Evil Numbers (Long)
657787871
Farey Sequence
597
Fibonacci
816
Fizz Buzz
738
Fractions
514
Gray Code Decoder
601
Gray Code Encoder
751
Happy Numbers
655
Happy Numbers (Long)
717
Leap Years
771
Look and Say
822
Niven Numbers
916
Odious Numbers (Long)
836
Quine
941
Recamán
694
Reverse Polish Notation
821
United States
218