12 Days of Christmas
24th
99 Bottles of Beer
44th21st
Abundant Numbers
17th
brainfuck
Christmas Trees
13th
CSS Colors
41st
Cubes
39th
Diamonds
56th13th
61st
Divisors
19th
Emirp Numbers
21st
Emojify
11th
Evil Numbers
14th
Fibonacci
304th106th
Fizz Buzz
57th
784th
Happy Numbers
35th
Intersection
48th42nd
65th
Leyland Numbers
37th
Morse Decoder
14th
Morse Encoder
22nd
Ordinal Numbers
13th
Pascal’s Triangle
14th
Pernicious Numbers
65th36th
80th
Quine
1st
Rock-paper-scissors-Spock-lizard
16th
Roman to Arabic
27th
Rule 110
10th
Seven Segment
11th
Sierpiński Triangle
15th
Spelling Numbers
15th
Tongue-twisters
16th10th
United States
25th
λ
19th
π
26th
τ
24th
φ
24th
√2
3rd
26th19th
1st16th