12 Days of Christmas
33rd
99 Bottles of Beer
16th
Abundant Numbers
37th
brainfuck
32nd
Christmas Trees
5th
Cubes
12th
Diamonds
20th
Divisors
86th
Emirp Numbers
21st
Evil Numbers
31st
Fibonacci
749th1st
Fizz Buzz
134th
Happy Numbers
24th
Leap Years
29th
Morse Encoder
9th
Niven Numbers
45th
Odious Numbers
29th
Ordinal Numbers
24th
Pangram Grep
Pascal’s Triangle
20th
Pernicious Numbers
32nd
Prime Numbers
42nd
Quine
1st
Rock-paper-scissors-Spock-lizard
9th
Roman to Arabic
Rule 110
12th
Seven Segment
16th
Sierpiński Triangle
24th
λ
14th
π
57th
17th
τ
12th
φ
15th
√2
12th
𝑒
14th