12 Days of Christmas
101st
99 Bottles of Beer
43rd
Abundant Numbers
45th
brainfuck
14th
Catalan Numbers
25th
Collatz
47th
Diamonds
29th
Divisors
12th
Evil Numbers
58th
Fibonacci
29th
Fizz Buzz
16th
1st
Foo Fizz Buzz Bar
49th
Intersection
27th
Leap Years
65th
Look and Say
26th
Morse Encoder
17th
Niven Numbers
76th
Odious Numbers
58th
Pangram Grep
49th
Pernicious Numbers
45th
Prime Numbers
40th
RecamΓ‘n
19th
Roman to Arabic
18th
Spelling Numbers
21st
United States
23rd
Ο
17th
β2
39th
π
13th