12 Days of Christmas
41st
99 Bottles of Beer
454th
23rd
Abundant Numbers
47th
Arabic to Roman
30th
brainfuck
18th
Christmas Trees
68th
CSS Colors
32nd
Cubes
27th
Diamonds
50th
Divisors
445th
68th
Emirp Numbers
81st
Evil Numbers
49th
Fibonacci
57th
Fizz Buzz
1,062nd
69th
Happy Numbers
71st
Leap Years
20th
Leyland Numbers
35th
Lucky Tickets
Morse Decoder
20th
Morse Encoder
22nd
Niven Numbers
38th
Odious Numbers
42nd
Ordinal Numbers
1st
21st
Pangram Grep
54th
Pascal’s Triangle
35th
Pernicious Numbers
46th
Prime Numbers
53rd
Quine
89th
95th
Rock-paper-scissors-Spock-lizard
32nd
Roman to Arabic
35th
Rule 110
26th
Seven Segment
20th
Sierpiński Triangle
23rd
Spelling Numbers
14th
Sudoku
46th
13th
United States
28th
Vampire Numbers
25th
λ
21st
π
36th
τ
35th27th
φ
33rd
√2
27th
𝑒
33rd