12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
11th
Arabic to Roman
brainfuck
7th
Christmas Trees
114th
11th
Cubes
Diamonds
16th
Divisors
144th
16th
Emirp Numbers
20th
Evil Numbers
13th
Fibonacci
30th
Fizz Buzz
74th21st209th19th63rd35th1st40th49th60th9th
236th40th83rd
Happy Numbers
21st
Leap Years
21st
Niven Numbers
40th
Odious Numbers
27th
Ordinal Numbers
Pangram Grep
12th
Pascal’s Triangle
24th
Pernicious Numbers
35th
Prime Numbers
155th
10th
Quine
41st
6th88th
Rock-paper-scissors-Spock-lizard
Rule 110
17th
Seven Segment
25th
Sierpiński Triangle
Spelling Numbers
Sudoku
λ
15th
π
16th
τ
15th
φ
13th
√2
11th
𝑒
20th