12 Days of Christmas
16th
99 Bottles of Beer
9th
Abundant Numbers
18th
brainfuck
Christmas Trees
11th
Cubes
10th
Diamonds
8th
Divisors
20th
Emirp Numbers
37th
Evil Numbers
45th
Fibonacci
1st109th
Fizz Buzz
10th
Hexdump
4th
Kaprekar Numbers
14th
Lucky Tickets
Morse Decoder
7th
Niven Numbers
32nd
Odious Numbers
42nd
PalindromemordnilaP
7th
Pangram Grep
14th
Partition Numbers
13th
Pernicious Numbers
45th
Prime Numbers
58th
Recamán
21st
Rijndael S-box
8th
ROT13
17th
Scrambled Sort
6th
United States
20th
π
14th
τ
12th
φ
30th
√2
34th