12 Days of Christmas
77th
99 Bottles of Beer
32nd
Abundant Numbers
86th
Divisors
105th
Evil Numbers
101st
Evil Numbers (Long)
64th
Fibonacci
161st
Fizz Buzz
31st54th
Leap Years
151st
Niven Numbers
83rd
Odious Numbers
85th
Odious Numbers (Long)
60th
Pascal’s Triangle
44th
Prime Numbers
59th
Quine
1st23rd
823rd
Recamán
39th
Tongue-twisters
46th