12 Days of Christmas
28th
99 Bottles of Beer
12th
Abundant Numbers
33rd
brainfuck
28th
Christmas Trees
5th
Cubes
9th
Diamonds
18th
Divisors
77th
Emirp Numbers
19th
Evil Numbers
26th
Fibonacci
678th1st
Fizz Buzz
127th
Happy Numbers
20th
Leap Years
25th
Morse Encoder
9th
Niven Numbers
37th
Odious Numbers
24th
Ordinal Numbers
19th
Pangram Grep
Pascal’s Triangle
21st
Pernicious Numbers
28th
Prime Numbers
38th
Quine
1st
Rock-paper-scissors-Spock-lizard
8th
Roman to Arabic
Rule 110
12th
Seven Segment
11th
Sierpiński Triangle
21st
λ
6th
π
50th
11th
τ
8th
φ
10th
√2
8th
𝑒
12th