12 Days of Christmas
73rd
99 Bottles of Beer
32nd
Abundant Numbers
83rd
Divisors
105th
Evil Numbers
102nd
Evil Numbers (Long)
65th
Fibonacci
159th
Fizz Buzz
32nd54th
Leap Years
149th
Niven Numbers
81st
Odious Numbers
85th
Odious Numbers (Long)
60th
Pascal’s Triangle
44th
Prime Numbers
61st
Quine
1st23rd
818th
Recamán
38th
Tongue-twisters
47th