Abundant Numbers
65th
Abundant Numbers (Long)
48th
Arithmetic Numbers
31st
Diamonds
37th
Divisors
68th
Evil Numbers
43rd
Evil Numbers (Long)
29th
Fizz Buzz
3rd
Fractions
19th
Game of Life
20th
ISBN
46th
Odious Numbers
37th
Odious Numbers (Long)
27th
PalindromemordnilaP
11th
Pernicious Numbers
53rd
Prime Numbers
76th
Prime Numbers (Long)
53rd
Quine
115th
Recamán
18th
Tongue-twisters
31st