12 Days of Christmas
19th
99 Bottles of Beer
22nd
Abundant Numbers
31st907th
Abundant Numbers (Long)
19th
Arithmetic Numbers
14th
ASCII Table
8th
Catalan Numbers
31st
Catalan’s Constant
13th
Christmas Trees
26th
Collatz
27th567th
CSS Colors
19th
Cubes
9th
Day of Week
1st
Diamonds
24th
Divisors
56th632nd
Emirp Numbers
38th
Emojify
19th
Evil Numbers
40th
Evil Numbers (Long)
27th
Farey Sequence
10th
Fibonacci
38th191st
Fizz Buzz
1st885th60th
Foo Fizz Buzz Bar
1st342nd
Fractions
20th
Happy Numbers
32nd
Happy Numbers (Long)
18th
Intersection
15th
Kolakoski Constant
14th
Kolakoski Sequence
22nd
Leap Years
1st
Leyland Numbers
25th
Look and Say
15th
Lucky Numbers
9th
Morse Decoder
12th
Niven Numbers
30th
Niven Numbers (Long)
3rd
Number Spiral
8th
Odious Numbers
36th
Odious Numbers (Long)
25th
Ordinal Numbers
26th
Pangram Grep
29th
Pascal’s Triangle
26th
Pernicious Numbers
55th
Prime Numbers
55th
Prime Numbers (Long)
26th
Quine
1st
Recamán
19th
Rijndael S-box
19th
Rock-paper-scissors-Spock-lizard
12th
Roman to Arabic
20th
Seven Segment
25th
Sierpiński Triangle
22nd
Sudoku
5th
Tongue-twisters
27th
United States
17th336th
Vampire Numbers
13th
π
33rd
τ
17th