12 Days of Christmas
19th
99 Bottles of Beer
36th
Abundant Numbers
309th
31st
Arabic to Roman
30th
Christmas Trees
249th
32nd
CSS Colors
78th
23rd
Cubes
16th
Diamonds
28th
Divisors
83rd
35th
Emirp Numbers
270th
45th
Evil Numbers
261st
46th
Fibonacci
131st
7th
Fizz Buzz
354th
153rd
59th
Happy Numbers
154th
47th
Intersection
21st
Kolakoski Constant
82nd
24th
Kolakoski Sequence
47th
17th
Leap Years
132nd
38th
Levenshtein Distance
78th
Leyland Numbers
114th
18th
Look and Say
20th
Lucky Tickets
16th
Morse Decoder
12th
Morse Encoder
11th
Niven Numbers
153rd
11th
Odious Numbers
182nd
39th
Ordinal Numbers
163rd
23rd
Pangram Grep
42nd
Pascal’s Triangle
24th
Pernicious Numbers
211th
35th
Prime Numbers
120th
23rd
Quine
69th
Recamán
86th
28th
Rock-paper-scissors-Spock-lizard
25th
Roman to Arabic
25th
Rule 110
26th
Seven Segment
24th
Sierpiński Triangle
68th
11th
Tongue-twisters
28th
Vampire Numbers
140th
31st
λ
52nd
18th
π
35th
τ
43rd
φ
219th
42nd
√2
38th
𝑒
36th