12 Days of Christmas
39th
13th
5th
99 Bottles of Beer
14th
7th
8th
Abundant Numbers
41st
Arabic to Roman
20th
12th
235th
Arrows
102nd
ASCII Table
18th
152nd
brainfuck
50th
Christmas Trees
35th
Collatz
41st
116th
Cubes
16th
3rd
Diamonds
4th
2nd
93rd
Evil Numbers (Long)
12th
29th
Fizz Buzz
111th
37th
Forsyth–Edwards Notation
8th
ISBN
18th
Look and Say
17th
308th
Niven Numbers (Long)
27th
16th
36th
Repeating Decimals
7th
6th
Sierpiński Triangle
9th
Sudoku
3rd
Tongue-twisters
13th
116th
Van Eck Sequence
18th
λ
16th
π
10th
6th
188th
τ
20th
√2
11th
348th
𝑒
13th
10th