12 Days of Christmas
6th
99 Bottles of Beer
17th
Abundant Numbers
12th978th
Abundant Numbers (Long)
6th
Arithmetic Numbers
9th
Arrows
12th
ASCII Table
8th
Catalan Numbers
20th
Christmas Trees
10th
Collatz
14th588th
62nd
CSS Colors
20th
Day of Week
1st
Diamonds
12th
Divisors
18th1,360th
Emirp Numbers
18th
Emirp Numbers (Long)
7th
Emojify
6th
Evil Numbers
28th915th
Evil Numbers (Long)
17th494th
Farey Sequence
11th
Fibonacci
10th1,710th
Fizz Buzz
122nd642nd39th532nd1,294th206th68th92nd147th1st1,232nd126th252nd250th44th33rd
Foo Fizz Buzz Bar
28th
1st467th
Fractions
10th522nd
Happy Numbers
22nd
Happy Numbers (Long)
7th
Inventory Sequence
10th
ISBN
13th
Kolakoski Sequence
10th
Leap Years
1st951st
Leyland Numbers
8th
Look and Say
10th
Lucky Numbers
7th
Medal Tally
7th
Niven Numbers
32nd
Niven Numbers (Long)
3rd
Number Spiral
6th
Odious Numbers
25th661st
Odious Numbers (Long)
17th383rd
Ordinal Numbers
11th
Pangram Grep
17th
Partition Numbers
9th
Pascal’s Triangle
14th
Pernicious Numbers
35th580th
Pernicious Numbers (Long)
13th
Prime Numbers
22nd1,073rd
Prime Numbers (Long)
19th
Quine
1st
Recamán
13th
Reverse Polish Notation
12th
Rock-paper-scissors-Spock-lizard
8th
Roman to Arabic
12th
ROT13
7th
Seven Segment
6th
Sierpiński Triangle
15th
Star Wars Opening Crawl
5th
Ten-pin Bowling
Tic-tac-toe
8th
Time Distance
5th
Tongue-twisters
14th323rd
Transpose Sentence
3rd
United States
12th
Vampire Numbers
9th
Van Eck Sequence
15th
Zeckendorf Representation
8th
π
19th