12 Days of Christmas
937th
99 Bottles of Beer
18th
Abundant Numbers
18th
Arrows
11th
Collatz
23rd
Evil Numbers (Long)
500th
Fibonacci
149th
76th
Fizz Buzz
121st174th
73rd529th1,377th82nd
Niven Numbers (Long)
412th
Odious Numbers
88th
787th65th119th
Pangram Grep
18th
32nd54th
49th215th33rd29th558th61st97th37th29th
Prime Numbers
46th
Quine
131st
803rd
π
34th