12 Days of Christmas
6th
99 Bottles of Beer
17th
Abundant Numbers
12th904th
Abundant Numbers (Long)
6th
Arithmetic Numbers
7th
Arrows
12th
ASCII Table
8th
Catalan Numbers
16th
Christmas Trees
9th
Collatz
14th504th
53rd
CSS Colors
17th
Day of Week
1st
Diamonds
8th
Divisors
15th1,284th
Emirp Numbers
17th
Emirp Numbers (Long)
6th
Emojify
6th
Evil Numbers
25th839th
Evil Numbers (Long)
17th425th
Farey Sequence
11th
Fibonacci
8th1,586th
Fizz Buzz
113th589th37th489th1,240th199th66th89th141st1st1,140th121st231st237th41st31st
Foo Fizz Buzz Bar
28th
1st411th
Fractions
8th464th
Happy Numbers
20th
Happy Numbers (Long)
7th
Inventory Sequence
10th
ISBN
12th
Kolakoski Sequence
10th
Leap Years
1st889th
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
21st605th
Odious Numbers (Long)
16th331st
Ordinal Numbers
9th
Pangram Grep
16th
Pascal’s Triangle
13th
Pernicious Numbers
30th534th
Pernicious Numbers (Long)
13th
Prime Numbers
16th1,002nd
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
14th288th
Transpose Sentence
3rd
United States
12th
Vampire Numbers
8th
Van Eck Sequence
13th
Zeckendorf Representation
8th
π
15th