12 Days of Christmas
7th
99 Bottles of Beer
13th
Abundant Numbers
14th
Arabic to Roman
6th
Christmas Trees
9th
CSS Colors
9th
Cubes
8th
Diamonds
8th
Divisors
243rd
10th
Emirp Numbers
8th
Evil Numbers
199th
9th
Fibonacci
439th
54th
Fizz Buzz
575th366th42nd
Happy Numbers
8th
Leap Years
196th
23rd
Leyland Numbers
13th
Morse Decoder
6th
Morse Encoder
7th
Niven Numbers
21st
Odious Numbers
157th
9th
Ordinal Numbers
43rd
Pangram Grep
14th
Pascal’s Triangle
11th
Pernicious Numbers
13th
Prime Numbers
212th
6th
Quine
55th
Rock-paper-scissors-Spock-lizard
6th
Roman to Arabic
7th
Rule 110
10th
Seven Segment
7th
Sierpiński Triangle
10th
Tongue-twisters
12th
United States
9th
Vampire Numbers
6th
λ
11th
π
10th
τ
9th
φ
9th
√2
8th
𝑒
9th