12 Days of Christmas
15th
18th
99 Bottles of Beer
27th
18th
Abundant Numbers
13th
29th
Arabic to Roman
4th
brainfuck
17th
Christmas Trees
8th
Cubes
13th
Diamonds
6th
Divisors
40th
2nd
Emirp Numbers
21st
Evil Numbers
31st
20th
Fibonacci
30th
61st
Fizz Buzz
24th
51st
Happy Numbers
15th
14th
Leap Years
47th
26th
Morse Encoder
4th
Niven Numbers
28th
20th
Odious Numbers
29th
19th
Ordinal Numbers
13th
Pangram Grep
21st
Pascal’s Triangle
8th
9th
Pernicious Numbers
27th
24th
Prime Numbers
33rd
15th
Quine
73rd
Roman to Arabic
7th
8th
Rule 110
7th
Seven Segment
5th
4th
Sierpiński Triangle
6th
8th
Spelling Numbers
7th