12 Days of Christmas
76th
99 Bottles of Beer
32nd
Abundant Numbers
83rd
Divisors
105th
Evil Numbers
101st
Evil Numbers (Long)
64th
Fibonacci
159th
Fizz Buzz
31st54th
Leap Years
149th
Niven Numbers
81st
Odious Numbers
85th
Odious Numbers (Long)
60th
Pascal’s Triangle
44th
Prime Numbers
59th
Quine
1st22nd
817th
Recamán
38th
Tongue-twisters
45th