12 Days of Christmas
6th
99 Bottles of Beer
17th
Abundant Numbers
11th932nd
Abundant Numbers (Long)
6th
Arithmetic Numbers
7th
Arrows
12th
ASCII Table
7th
Catalan Numbers
17th
Christmas Trees
9th
Collatz
14th530th
54th
CSS Colors
17th
Day of Week
1st
Diamonds
8th
Divisors
15th1,306th
Emirp Numbers
18th
Emirp Numbers (Long)
7th
Emojify
6th
Evil Numbers
25th866th
Evil Numbers (Long)
17th452nd
Farey Sequence
11th
Fibonacci
8th1,633rd
Fizz Buzz
118th606th37th510th1,256th200th66th91st141st1st1,162nd123rd235th240th43rd31st
Foo Fizz Buzz Bar
28th
1st424th
Fractions
8th480th
Happy Numbers
20th
Happy Numbers (Long)
7th
Inventory Sequence
9th
ISBN
12th
Kolakoski Sequence
9th
Leap Years
1st903rd
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
23rd628th
Odious Numbers (Long)
17th353rd
Ordinal Numbers
9th
Pangram Grep
16th
Partition Numbers
8th
Pascal’s Triangle
13th
Pernicious Numbers
33rd546th
Pernicious Numbers (Long)
13th
Prime Numbers
16th1,020th
Prime Numbers (Long)
15th
Quine
1st
Recamán
12th
Reverse Polish Notation
10th
Rock-paper-scissors-Spock-lizard
8th
Roman to Arabic
12th
ROT13
5th
Seven Segment
5th
Sierpiński Triangle
15th
Star Wars Opening Crawl
5th
Ten-pin Bowling
7th
Tic-tac-toe
7th
Time Distance
5th
Tongue-twisters
14th299th
Transpose Sentence
3rd
United States
12th
Vampire Numbers
8th
Van Eck Sequence
13th
Zeckendorf Representation
8th
π
14th