12 Days of Christmas
1,041st
99 Bottles of Beer
120th
Abundant Numbers
89th
Christmas Trees
21st455th
Divisors
12th1st
Emirp Numbers
121st
Evil Numbers
765th
Fibonacci
1,163rd
Fizz Buzz
147th1,596th
Fractions
482nd
Happy Numbers
120th
Leap Years
489th
Morse Decoder
97th
Morse Encoder
74th
Niven Numbers
43rd269th
Pangram Grep
333rd
Pascal’s Triangle
644th
Pernicious Numbers
383rd
Prime Numbers
399th
Quine
107th84th
Rule 110
156th
Seven Segment
144th
Tongue-twisters
45th
λ
135th