12 Days of Christmas
15th
18th99 Bottles of Beer
27th
18thAbundant Numbers
15th
30thArabic to Roman
4thbrainfuck
17th
Christmas Trees
8th
Cubes
13th
Diamonds
6th
Divisors
41st
2ndEmirp Numbers
22nd
Evil Numbers
31st
20thFibonacci
32nd
62ndFizz Buzz
24th
51stHappy Numbers
15th
14thLeap Years
48th
26thMorse Encoder
4th
Niven Numbers
28th
20thOdious Numbers
29th
19thOrdinal Numbers
13th
Pangram Grep
21st
Pascal’s Triangle
8th
9thPernicious Numbers
27th
24thPrime Numbers
34th
16thQuine
73rd
Roman to Arabic
7th
8thRule 110
7th
Seven Segment
6th
3rdSierpiński Triangle
6th
8thSpelling Numbers
7th