12 Days of Christmas
105th
99 Bottles of Beer
102nd
Abundant Numbers
35th
Arabic to Roman
8th
brainfuck
16th
Christmas Trees
45th
CSS Colors
44th
Diamonds
11th
Divisors
29th
Emirp Numbers
40th
Evil Numbers
41st
Fibonacci
67th
Fizz Buzz
58th
Happy Numbers
21st
Leap Years
21st
Leyland Numbers
22nd
Morse Decoder
16th
Morse Encoder
16th
Niven Numbers
27th
Odious Numbers
33rd
Ordinal Numbers
Pangram Grep
16th
Pascal’s Triangle
32nd
Pernicious Numbers
30th
Prime Numbers
19th
Quine
10th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
17th
Rule 110
19th
Seven Segment
19th
Sierpiński Triangle
19th
Spelling Numbers
7th
Sudoku
United States
λ
11th
π
11th
τ
10th
φ
√2
14th
𝑒
15th