12 Days of Christmas
6th
99 Bottles of Beer
17th
Abundant Numbers
12th880th
Abundant Numbers (Long)
6th
Arithmetic Numbers
7th
Arrows
12th
ASCII Table
8th
Catalan Numbers
16th
Christmas Trees
9th
Collatz
14th482nd
52nd
CSS Colors
17th
Day of Week
1st
Diamonds
8th
Divisors
15th1,263rd
Emirp Numbers
17th
Emirp Numbers (Long)
6th
Emojify
6th
Evil Numbers
25th824th
Evil Numbers (Long)
17th410th
Farey Sequence
11th
Fibonacci
8th1,556th
Fizz Buzz
113th580th36th485th1,222nd197th64th87th140th1st1,126th120th229th234th40th30th
Foo Fizz Buzz Bar
28th
1st402nd
Fractions
8th447th
Happy Numbers
20th
Happy Numbers (Long)
7th
Inventory Sequence
10th
ISBN
12th
Kolakoski Sequence
10th
Leap Years
1st869th
Leyland Numbers
8th
Look and Say
8th
Lucky Numbers
7th
Medal Tally
7th
Niven Numbers
27th
Niven Numbers (Long)
3rd
Number Spiral
6th
Odious Numbers
21st595th
Odious Numbers (Long)
16th321st
Ordinal Numbers
9th
Pangram Grep
16th
Pascal’s Triangle
13th
Pernicious Numbers
30th521st
Pernicious Numbers (Long)
13th
Prime Numbers
16th983rd
Prime Numbers (Long)
15th
Quine
1st
Recamán
12th
Reverse Polish Notation
10th
Rock-paper-scissors-Spock-lizard
8th
Roman to Arabic
12th
ROT13
6th
Seven Segment
5th
Sierpiński Triangle
15th
Star Wars Opening Crawl
5th
Ten-pin Bowling
7th
Tic-tac-toe
8th
Time Distance
5th
Tongue-twisters
14th281st
Transpose Sentence
3rd
United States
12th
Vampire Numbers
8th
Van Eck Sequence
13th
Zeckendorf Representation
8th
π
15th