12 Days of Christmas
30th
99 Bottles of Beer
13th
Abundant Numbers
33rd
brainfuck
29th
Christmas Trees
5th
Cubes
9th
Diamonds
18th
Divisors
81st
Emirp Numbers
20th
Evil Numbers
26th
Fibonacci
698th1st
Fizz Buzz
131st
Happy Numbers
21st
Leap Years
26th
Morse Encoder
9th
Niven Numbers
39th
Odious Numbers
24th
Ordinal Numbers
21st
Pangram Grep
Pascal’s Triangle
23rd
Pernicious Numbers
28th
Prime Numbers
38th
Quine
1st
Rock-paper-scissors-Spock-lizard
9th
Roman to Arabic
Rule 110
12th
Seven Segment
11th
Sierpiński Triangle
22nd
λ
6th
π
52nd
12th
τ
8th
φ
10th
√2
8th
𝑒
14th