12 Days of Christmas
16th
99 Bottles of Beer
9th
Abundant Numbers
19th
brainfuck
Christmas Trees
12th
Cubes
10th
Diamonds
8th
Divisors
20th
Emirp Numbers
38th
Evil Numbers
47th
Fibonacci
1st110th
Fizz Buzz
10th
Hexdump
4th
Kaprekar Numbers
14th
Lucky Tickets
Morse Decoder
7th
Niven Numbers
34th
Odious Numbers
44th
PalindromemordnilaP
7th
Pangram Grep
14th
Partition Numbers
13th
Pernicious Numbers
45th
Prime Numbers
59th
Recamán
21st
Rijndael S-box
8th
ROT13
17th
Scrambled Sort
9th
United States
20th
π
14th
τ
12th
φ
30th
√2
34th