12 Days of Christmas
38th
9th
11th
99 Bottles of Beer
10th
6th
28th
Abundant Numbers
41st
Arabic to Roman
19th
12th
225th
Arrows
147th
ASCII Table
18th
146th
brainfuck
115th
Christmas Trees
35th
Collatz
41st
75th
Cubes
13th
3rd
Diamonds
4th
2nd
75th
Evil Numbers (Long)
12th
29th
Fizz Buzz
109th
36th
Forsyth–Edwards Notation
8th
ISBN
18th
Look and Say
17th
307th
Niven Numbers (Long)
25th
16th
27th
Repeating Decimals
6th
5th
Sierpiński Triangle
9th
Sudoku
4th
Tongue-twisters
8th
72nd
Van Eck Sequence
18th
λ
14th
π
10th
6th
169th
τ
20th
√2
11th
346th
𝑒
13th
10th