12 Days of Christmas
79th
99 Bottles of Beer
32nd
Abundant Numbers
88th
Divisors
107th
Evil Numbers
103rd
Evil Numbers (Long)
65th
Fibonacci
162nd
Fizz Buzz
31st56th
Leap Years
155th
Niven Numbers
84th
Odious Numbers
87th
Odious Numbers (Long)
61st
Pascal’s Triangle
45th
Prime Numbers
59th
Quine
1st26th
841st
Recamán
41st
Tongue-twisters
46th