12 Days of Christmas
27th
99 Bottles of Beer
24th
Abundant Numbers
34th938th
Abundant Numbers (Long)
21st
Arithmetic Numbers
17th
ASCII Table
9th
Catalan Numbers
33rd
Catalan’s Constant
13th
Christmas Trees
28th
Collatz
28th596th
CSS Colors
22nd
Cubes
10th
Day of Week
1st
Diamonds
29th
Divisors
58th664th
Emirp Numbers
40th
Emojify
21st
Evil Numbers
45th
Evil Numbers (Long)
29th
Farey Sequence
11th
Fibonacci
40th204th
Fizz Buzz
1st940th61st
Foo Fizz Buzz Bar
5th387th
Fractions
21st
Happy Numbers
33rd
Happy Numbers (Long)
19th
Intersection
17th
Kolakoski Constant
15th
Kolakoski Sequence
23rd
Leap Years
1st
Leyland Numbers
27th
Look and Say
16th
Lucky Numbers
9th
Morse Decoder
13th
Niven Numbers
34th
Niven Numbers (Long)
5th
Number Spiral
9th
Odious Numbers
39th
Odious Numbers (Long)
27th
Ordinal Numbers
27th
Pangram Grep
31st
Pascal’s Triangle
27th
Pernicious Numbers
60th
Prime Numbers
61st
Prime Numbers (Long)
30th
Quine
1st
Recamán
19th
Rijndael S-box
20th
Rock-paper-scissors-Spock-lizard
13th
Roman to Arabic
23rd
Seven Segment
27th
Sierpiński Triangle
24th
Sudoku
5th
Tongue-twisters
27th
United States
18th347th
Vampire Numbers
15th
π
37th
τ
21st