12 Days of Christmas
17th
99 Bottles of Beer
19th
Abundant Numbers
15th953rd
Abundant Numbers (Long)
6th
Arithmetic Numbers
7th
Arrows
12th
ASCII Table
8th
Catalan Numbers
17th
Christmas Trees
9th
Collatz
14th551st
59th
CSS Colors
17th
Day of Week
1st
Diamonds
9th
Divisors
15th1,332nd
Emirp Numbers
20th
Emirp Numbers (Long)
7th
Emojify
6th
Evil Numbers
26th886th
Evil Numbers (Long)
17th467th
Farey Sequence
11th
Fibonacci
9th1,664th
Fizz Buzz
120th628th38th522nd1,271st202nd67th92nd145th1st1,203rd124th248th244th43rd31st
Foo Fizz Buzz Bar
28th
4th457th
Fractions
9th494th
Happy Numbers
22nd
Happy Numbers (Long)
7th
Inventory Sequence
10th
ISBN
12th
Kolakoski Sequence
10th
Leap Years
1st917th
Leyland Numbers
9th
Look and Say
8th
Lucky Numbers
7th
Medal Tally
6th
Niven Numbers
30th
Niven Numbers (Long)
3rd
Number Spiral
6th
Odious Numbers
25th641st
Odious Numbers (Long)
17th362nd
Ordinal Numbers
9th
Pangram Grep
16th
Partition Numbers
8th
Pascal’s Triangle
13th
Pernicious Numbers
37th564th
Pernicious Numbers (Long)
13th
Prime Numbers
20th1,040th
Prime Numbers (Long)
15th
Quine
1st
Recamán
12th
Reverse Polish Notation
10th
Rock-paper-scissors-Spock-lizard
7th
Roman to Arabic
12th
ROT13
6th
Seven Segment
8th
Sierpiński Triangle
15th
Star Wars Opening Crawl
5th
Ten-pin Bowling
7th
Tic-tac-toe
8th
Time Distance
5th
Tongue-twisters
14th324th
Transpose Sentence
3rd
United States
13th
Vampire Numbers
11th
Van Eck Sequence
14th
Zeckendorf Representation
8th
π
15th