12 Days of Christmas
25th
99 Bottles of Beer
23rd
Abundant Numbers
30th
786th
Abundant Numbers (Long)
18th
Arithmetic Numbers
13th
ASCII Table
8th
Catalan Numbers
25th
Catalan’s Constant
12th
Christmas Trees
25th
Collatz
18th
443rd
CSS Colors
18th
Cubes
12th
Day of Week
1st
Diamonds
24th
Divisors
53rd
564th
Emirp Numbers
35th
Emojify
18th
Evil Numbers
37th
Evil Numbers (Long)
24th
Farey Sequence
10th
Fibonacci
32nd
147th
Fizz Buzz
1st
815th
52nd
Foo Fizz Buzz Bar
4th
304th
Fractions
19th
Happy Numbers
28th
Happy Numbers (Long)
17th
Intersection
15th
Kolakoski Constant
13th
Kolakoski Sequence
20th
Leap Years
1st
Leyland Numbers
23rd
Look and Say
14th
Lucky Numbers
8th
Morse Decoder
11th
Niven Numbers
29th
Niven Numbers (Long)
3rd
Number Spiral
8th
Odious Numbers
30th
Odious Numbers (Long)
21st
Ordinal Numbers
24th
Pangram Grep
26th
Pascal’s Triangle
24th
Pernicious Numbers
50th
Prime Numbers
46th
Prime Numbers (Long)
23rd
Quine
1st
Recamán
17th
Rijndael S-box
15th
Rock-paper-scissors-Spock-lizard
13th
Roman to Arabic
19th
Seven Segment
24th
Sierpiński Triangle
21st
Sudoku
6th
Tongue-twisters
26th
United States
17th
276th
Vampire Numbers
13th
π
30th
τ
17th