12 Days of Christmas
24th
99 Bottles of Beer
44th21st
Abundant Numbers
17th
brainfuck
Christmas Trees
13th
CSS Colors
41st
Cubes
38th
Diamonds
55th13th
59th
Divisors
19th
Emirp Numbers
21st
Emojify
11th
Evil Numbers
14th
Fibonacci
301st105th
Fizz Buzz
57th
774th
Happy Numbers
35th
Intersection
45th41st
63rd
Leyland Numbers
36th
Morse Decoder
13th
Morse Encoder
22nd
Ordinal Numbers
12th
Pascal’s Triangle
14th
Pernicious Numbers
64th35th
77th
Quine
1st
Rock-paper-scissors-Spock-lizard
16th
Roman to Arabic
27th
Rule 110
10th
Seven Segment
11th
Sierpiński Triangle
15th
Spelling Numbers
13th
Tongue-twisters
16th10th
United States
25th
λ
19th
π
26th
τ
24th
φ
24th
√2
3rd
26th18th
1st15th