12 Days of Christmas
37th
99 Bottles of Beer
74th
47th
Abundant Numbers
48th
Abundant Numbers (Long)
39th
Arabic to Roman
44th
12th
Arithmetic Numbers
23rd
Arrows
21st
ASCII Table
29th
brainfuck
23rd
Catalan Numbers
284th11th
Catalan’s Constant
15th
11th
Christmas Trees
38th
Collatz
40th
CSS Colors
13th
Cubes
10th
Diamonds
25th
Divisors
63rd
55th
Emirp Numbers
26th
Emirp Numbers (Long)
18th
Emojify
16th
Evil Numbers
40th
Evil Numbers (Long)
31st
Factorial Factorisation
14th
Fibonacci
138th
99th
Fizz Buzz
87th
99th
Foo Fizz Buzz Bar
41st
28th
Fractions
42nd
20th
Gijswijt’s Sequence
13th
Happy Numbers
45th
Happy Numbers (Long)
24th
Hexdump
13th
Intersection
19th
Inventory Sequence
18th
ISBN
19th
Kolakoski Constant
11th
Kolakoski Sequence
21st
Leap Years
43rd
Leyland Numbers
19th
Look and Say
19th
16th
Lucky Numbers
14th
Niven Numbers
56th
50th
Niven Numbers (Long)
20th
Number Spiral
14th
Odious Numbers
57th
38th
Odious Numbers (Long)
31st
Ordinal Numbers
18th
Pangram Grep
31st
Pascal’s Triangle
54th
39th
Pernicious Numbers
47th
36th
Pernicious Numbers (Long)
20th
Prime Numbers
65th
42nd
Prime Numbers (Long)
63rd
35th
Proximity Grid
10th
Quine
65th
Recamán
27th
Repeating Decimals
8th
Reverse Polish Notation
20th
Rock-paper-scissors-Spock-lizard
18th
Roman to Arabic
17th
Rule 110
22nd
Seven Segment
25th
Sierpiński Triangle
30th
Smith Numbers
16th
Spelling Numbers
13th
Sudoku
10th
Tongue-twisters
35th
17th
United States
16th
Vampire Numbers
14th
Van Eck Sequence
25th
15th
λ
21st
15th
π
30th
18th
τ
22nd
12th
φ
21st
15th
√2
21st352nd14th
𝑒
32nd
22nd