12 Days of Christmas
6th
99 Bottles of Beer
18th
Abundant Numbers
13th982nd
Abundant Numbers (Long)
7th
Alphabetic Numbers
52nd
Arithmetic Numbers
10th
Arrows
13th
ASCII Table
9th
Catalan Numbers
21st
Christmas Trees
11th
Collatz
14th590th
63rd
CSS Colors
20th
Day of Week
1st
Diamonds
13th
Divisors
18th1,362nd
Emirp Numbers
19th
Emirp Numbers (Long)
8th
Emojify
7th
Evil Numbers
29th918th
Evil Numbers (Long)
18th502nd
Farey Sequence
12th
Fibonacci
10th1,726th
Fizz Buzz
122nd644th40th531st1,302nd209th69th93rd148th1st1,239th126th253rd253rd44th33rd
Foo Fizz Buzz Bar
28th
2nd472nd
Fractions
10th522nd
Happy Numbers
22nd
Happy Numbers (Long)
8th
Inventory Sequence
11th
ISBN
13th
Kolakoski Sequence
10th
Leap Years
1st955th
Leyland Numbers
9th
Look and Say
10th
Lucky Numbers
7th
Medal Tally
8th
Niven Numbers
32nd
Niven Numbers (Long)
5th
Number Spiral
6th
Odious Numbers
26th662nd
Odious Numbers (Long)
18th385th
Ordinal Numbers
11th
Pangram Grep
19th
Partition Numbers
10th
Pascal’s Triangle
15th
Pernicious Numbers
37th582nd
Pernicious Numbers (Long)
14th
Prime Numbers
22nd1,075th
Prime Numbers (Long)
20th
Quine
1st
Recamán
14th
Reverse Polish Notation
13th
Rock-paper-scissors-Spock-lizard
8th
Roman to Arabic
14th
ROT13
8th
Seven Segment
6th
Sierpiński Triangle
15th
Star Wars Opening Crawl
5th
Ten-pin Bowling
Tic-tac-toe
9th
Time Distance
5th
Tongue-twisters
15th324th
Transpose Sentence
4th
United States
13th
Vampire Numbers
10th
Van Eck Sequence
17th
Zeckendorf Representation
9th
π
20th