12 Days of Christmas
19th
99 Bottles of Beer
22nd
Abundant Numbers
31st926th
Abundant Numbers (Long)
19th
Arithmetic Numbers
16th
ASCII Table
8th
Catalan Numbers
31st
Catalan’s Constant
13th
Christmas Trees
27th
Collatz
28th587th
CSS Colors
21st
Cubes
9th
Day of Week
1st
Diamonds
26th
Divisors
57th649th
Emirp Numbers
39th
Emojify
19th
Evil Numbers
43rd
Evil Numbers (Long)
28th
Farey Sequence
10th
Fibonacci
39th200th
Fizz Buzz
1st902nd61st
Foo Fizz Buzz Bar
1st355th
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
31st
Niven Numbers (Long)
3rd
Number Spiral
8th
Odious Numbers
37th
Odious Numbers (Long)
26th
Ordinal Numbers
26th
Pangram Grep
29th
Pascal’s Triangle
26th
Pernicious Numbers
57th
Prime Numbers
58th
Prime Numbers (Long)
29th
Quine
1st
Recamán
19th
Rijndael S-box
19th
Rock-paper-scissors-Spock-lizard
12th
Roman to Arabic
20th
Seven Segment
26th
Sierpiński Triangle
23rd
Sudoku
5th
Tongue-twisters
27th
United States
17th342nd
Vampire Numbers
13th
π
35th
τ
19th