Abundant Numbers
68th
Abundant Numbers (Long)
52nd
Arithmetic Numbers
33rd
Diamonds
38th
Divisors
71st
Evil Numbers
47th
Evil Numbers (Long)
35th
Fizz Buzz
3rd
Fractions
20th
Game of Life
21st
ISBN
49th
Odious Numbers
42nd
Odious Numbers (Long)
32nd
PalindromemordnilaP
11th
Pernicious Numbers
56th
Prime Numbers
87th
Prime Numbers (Long)
59th
Quine
120th
Recamán
20th
Tongue-twisters
34th