12 Days of Christmas
118th
99 Bottles of Beer
127th
Abundant Numbers
75th
brainfuck
20th
Christmas Trees
25th7th7th
77th
CSS Colors
Cubes
22nd
Day of Week
1st
Diamonds
5th
Divisors
17th
Emirp Numbers
20th
Evil Numbers
55th
Fibonacci
39th
Fizz Buzz
38th
Foo Fizz Buzz Bar
54th
Happy Numbers
25th
Leap Years
78th
Leyland Numbers
6th166th
Morse Decoder
8th
Morse Encoder
19th
Niven Numbers
74th
Odious Numbers
56th
Ordinal Numbers
13th
Pangram Grep
13th
Pascal’s Triangle
6th
Pernicious Numbers
53rd
Prime Numbers
76th
Quine
12th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
31st
Seven Segment
22nd
Sierpiński Triangle
17th
Spelling Numbers
14th
Sudoku
4th
United States