Abundant Numbers
68th
Abundant Numbers (Long)
53rd
Arithmetic Numbers
33rd
Diamonds
38th
Divisors
71st
Evil Numbers
48th
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
57th
Prime Numbers
87th
Prime Numbers (Long)
59th
Quine
119th
Recamán
20th
Tongue-twisters
36th