12 Days of Christmas
83rd
99 Bottles of Beer
76th
Abundant Numbers
307th
110th
Abundant Numbers (Long)
135th
67th
Divisors
303rd
Evil Numbers
178th
Fibonacci
545th549th212th1,913th132nd246th
Fizz Buzz
1st
Fractions
1st
Pernicious Numbers
115th
Quine
49th
102nd
Roman to Arabic
132nd
Tongue-twisters
130th
United States
59th