Collatz
906
Divisors
795
Evil Numbers
610850
Evil Numbers (Long)
661787871
Farey Sequence
598
Fibonacci
816
Fizz Buzz
738
Fractions
514
Gray Code Decoder
602
Gray Code Encoder
751
Happy Numbers
655
Happy Numbers (Long)
718
Leap Years
772
Look and Say
823
Niven Numbers
917
Odious Numbers (Long)
837
Quine
941
Recamán
694
Reverse Polish Notation
823
United States
218