12 Days of Christmas
77th
99 Bottles of Beer
32nd
Abundant Numbers
85th
Divisors
105th
Evil Numbers
101st
Evil Numbers (Long)
64th
Fibonacci
160th
Fizz Buzz
31st54th
Leap Years
149th
Niven Numbers
83rd
Odious Numbers
85th
Odious Numbers (Long)
60th
Pascal’s Triangle
44th
Prime Numbers
59th
Quine
1st23rd
821st
Recamán
39th
Tongue-twisters
47th