Abundant Numbers
22nd
Abundant Numbers (Long)
24th
Arithmetic Numbers
32nd
Arrows
23rd
Collatz
34th
Evil Numbers
49th
Evil Numbers (Long)
37th
Fibonacci
31st
Fizz Buzz
160th
Fractions
24th
Happy Numbers
62nd
Happy Numbers (Long)
33rd
Hexdump
17th
Look and Say
26th
Niven Numbers
67th
Niven Numbers (Long)
30th
Odious Numbers
42nd
Odious Numbers (Long)
36th
Pascal’s Triangle
36th
Pernicious Numbers
50th
Pernicious Numbers (Long)
25th
Prime Numbers
67th
Prime Numbers (Long)
52nd
Reverse Polish Notation
30th
ROT13
14th
Smith Numbers
17th