12 Days of Christmas
947th
99 Bottles of Beer
18th
Abundant Numbers
18th
Arrows
12th
Collatz
23rd
Evil Numbers (Long)
509th
Fibonacci
151st
77th
Fizz Buzz
121st177th
73rd532nd1,383rd82nd
Niven Numbers (Long)
416th
Odious Numbers
90th
793rd66th120th
Pangram Grep
18th
32nd54th
50th215th34th29th558th62nd97th37th29th
Prime Numbers
46th
Quine
131st
807th
π
34th