12 Days of Christmas
31st
99 Bottles of Beer
13th
Abundant Numbers
35th
brainfuck
29th
Christmas Trees
5th
Cubes
9th
Diamonds
18th
Divisors
83rd
Emirp Numbers
20th
Evil Numbers
28th
Fibonacci
708th1st
Fizz Buzz
133rd
Happy Numbers
21st
Leap Years
26th
Morse Encoder
9th
Niven Numbers
41st
Odious Numbers
26th
Ordinal Numbers
22nd
Pangram Grep
Pascal’s Triangle
23rd
Pernicious Numbers
29th
Prime Numbers
39th
Quine
1st
Rock-paper-scissors-Spock-lizard
9th
Roman to Arabic
Rule 110
12th
Seven Segment
11th
Sierpiński Triangle
22nd
λ
7th
π
52nd
13th
τ
9th
φ
10th
√2
8th
𝑒
14th