12 Days of Christmas
19th
99 Bottles of Beer
22nd
Abundant Numbers
28th881st
Abundant Numbers (Long)
19th
Arithmetic Numbers
14th
ASCII Table
7th
Catalan Numbers
27th
Catalan’s Constant
13th
Christmas Trees
26th
Collatz
26th524th
CSS Colors
19th
Cubes
9th
Day of Week
1st
Diamonds
22nd
Divisors
54th604th
Emirp Numbers
38th
Emojify
19th
Evil Numbers
38th
Evil Numbers (Long)
27th
Farey Sequence
10th
Fibonacci
33rd176th
Fizz Buzz
1st854th60th
Foo Fizz Buzz Bar
1st320th
Fractions
19th
Happy Numbers
31st
Happy Numbers (Long)
18th
Intersection
15th
Kolakoski Constant
14th
Kolakoski Sequence
20th
Leap Years
1st
Leyland Numbers
25th
Look and Say
14th
Lucky Numbers
9th
Morse Decoder
12th
Niven Numbers
26th
Niven Numbers (Long)
3rd
Number Spiral
8th
Odious Numbers
35th
Odious Numbers (Long)
25th
Ordinal Numbers
25th
Pangram Grep
27th
Pascal’s Triangle
24th
Pernicious Numbers
54th
Prime Numbers
50th
Prime Numbers (Long)
25th
Quine
1st
Recamán
18th
Rijndael S-box
18th
Rock-paper-scissors-Spock-lizard
12th
Roman to Arabic
20th
Seven Segment
25th
Sierpiński Triangle
22nd
Sudoku
5th
Tongue-twisters
27th
United States
17th325th
Vampire Numbers
13th
π
30th
τ
16th