Abundant Numbers
67th
Abundant Numbers (Long)
51st
Arithmetic Numbers
31st
Diamonds
38th
Divisors
71st
Evil Numbers
45th
Evil Numbers (Long)
31st
Fizz Buzz
3rd
Fractions
20th
Game of Life
21st
ISBN
48th
Odious Numbers
39th
Odious Numbers (Long)
29th
PalindromemordnilaP
11th
Pernicious Numbers
54th
Prime Numbers
83rd
Prime Numbers (Long)
56th
Quine
118th
Recamán
19th
Tongue-twisters
34th