12 Days of Christmas
19th
99 Bottles of Beer
44th21st
Abundant Numbers
10th
brainfuck
Christmas Trees
13th
CSS Colors
41st
Cubes
39th
Diamonds
56th13th
56th
Divisors
19th
Emirp Numbers
23rd
Emojify
21st
Evil Numbers
10th
Fibonacci
304th106th
Fizz Buzz
57th
784th
Happy Numbers
34th
Intersection
48th42nd
53rd
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
14th
Roman to Arabic
28th
Rule 110
10th
Seven Segment
14th
Sierpiński Triangle
14th
Spelling Numbers
15th
Tongue-twisters
76th16th
United States
25th
λ
18th
π
26th
τ
24th
φ
24th
√2
3rd
26th1st
1st16th