12 Days of Christmas
6th
99 Bottles of Beer
7th
Abundant Numbers
17th
ASCII Table
9th
brainfuck
9th
Catalan’s Constant
9th
Christmas Trees
14th
Collatz
9th
CSS Colors
6th
Cubes
9th
Diamonds
10th
Divisors
5th
Emirp Numbers
10th
Emojify
5th
Evil Numbers
19th
Fibonacci
7th
Fizz Buzz
52nd
Happy Numbers
6th
ISBN
7th
Kolakoski Constant
8th
Leap Years
5th
Levenshtein Distance
Leyland Numbers
7th
Lucky Numbers
Lucky Tickets
Morse Encoder
4th
Niven Numbers
9th
Odious Numbers
18th
Ordinal Numbers
11th
Pangram Grep
7th77th
Pascal’s Triangle
10th
Prime Numbers
11th
Quine
1st27th
Recamán
10th
Rock-paper-scissors-Spock-lizard
8th
Roman to Arabic
8th
Sierpiński Triangle
12th
Smith Numbers
Tongue-twisters
5th
United States
Vampire Numbers
6th
Van Eck Sequence
7th
λ
11th
π
11th
τ
10th
φ
9th
√2
9th
𝑒
13th