12 Days of Christmas
7th
99 Bottles of Beer
12th
Abundant Numbers
12th
Arabic to Roman
5th
Christmas Trees
8th
CSS Colors
5th
Cubes
8th
Diamonds
7th
Divisors
229th
10th
Emirp Numbers
8th
Evil Numbers
191st
8th
Fibonacci
422nd
46th
Fizz Buzz
559th362nd42nd
Happy Numbers
9th
Leap Years
181st
22nd
Leyland Numbers
13th
Morse Decoder
5th
Morse Encoder
5th
Niven Numbers
20th
Odious Numbers
150th
9th
Ordinal Numbers
41st
Pangram Grep
13th
Pascal’s Triangle
11th
Pernicious Numbers
13th
Prime Numbers
197th
6th
Quine
53rd
Rock-paper-scissors-Spock-lizard
6th
Roman to Arabic
7th
Rule 110
10th
Seven Segment
7th
Sierpiński Triangle
10th
Tongue-twisters
12th
United States
8th
Vampire Numbers
6th
λ
10th
π
14th
τ
8th
φ
8th
√2
8th
𝑒
8th