12 Days of Christmas
16th
99 Bottles of Beer
9th
Abundant Numbers
18th
brainfuck
Christmas Trees
11th
Cubes
9th
Diamonds
8th
Divisors
19th
Emirp Numbers
37th
Evil Numbers
45th
Fibonacci
1st109th
Fizz Buzz
10th
Hexdump
4th
Kaprekar Numbers
14th
Lucky Tickets
Morse Decoder
7th
Niven Numbers
31st
Odious Numbers
42nd
PalindromemordnilaP
6th
Pangram Grep
14th
Partition Numbers
11th
Pernicious Numbers
45th
Prime Numbers
58th
Recamán
20th
Rijndael S-box
7th
ROT13
15th
Scrambled Sort
6th
United States
19th
π
13th
τ
11th
φ
29th
√2
33rd