12 Days of Christmas
17th
99 Bottles of Beer
41st18th
Abundant Numbers
brainfuck
Christmas Trees
13th
CSS Colors
36th
Cubes
Diamonds
52nd
48th
Divisors
18th
Emirp Numbers
20th
Emojify
19th
Evil Numbers
8th
Fibonacci
268th88th
Fizz Buzz
50th
732nd
Happy Numbers
Intersection
44th31st
46th
Leyland Numbers
29th
Morse Decoder
12th
Morse Encoder
20th
Ordinal Numbers
9th
Pascal’s Triangle
9th
Pernicious Numbers
54th31st
70th
Quine
1st
Rock-paper-scissors-Spock-lizard
12th
Roman to Arabic
26th
Rule 110
Seven Segment
Sierpiński Triangle
10th
Spelling Numbers
9th
Tongue-twisters
68th14th
United States
24th
λ
16th
π
22nd
τ
20th
φ
20th
√2
3rd
20th1st
1st15th