Abundant Numbers
67th
Abundant Numbers (Long)
52nd
Arithmetic Numbers
32nd
Diamonds
38th
Divisors
71st
Evil Numbers
46th
Evil Numbers (Long)
32nd
Fizz Buzz
3rd
Fractions
20th
Game of Life
21st
ISBN
48th
Odious Numbers
39th
Odious Numbers (Long)
30th
PalindromemordnilaP
11th
Pernicious Numbers
54th
Prime Numbers
84th
Prime Numbers (Long)
56th
Quine
118th
Recamán
19th
Tongue-twisters
35th