12 Days of Christmas
166th
Abundant Numbers
53rd
Arabic to Roman
102nd
brainfuck
120th
Christmas Trees
199th
Divisors
311th
Emirp Numbers
105th
Evil Numbers
158th
Fibonacci
66th
343rd
Fizz Buzz
142nd
582nd
213th
1st123rd204th
1,418th
232nd
Happy Numbers
107th
Leap Years
187th
Niven Numbers
216th
Odious Numbers
137th
Pangram Grep
131st
Prime Numbers
176th
Quine
1st25th194th94th30th53rd269th1st1st38th50th
56th83rd82nd11th
π
73rd
√2
402nd