12 Days of Christmas
16th
99 Bottles of Beer
17th
Abundant Numbers
12th
759th
Abundant Numbers (Long)
5th
Arithmetic Numbers
6th
Arrows
12th
ASCII Table
7th
Catalan Numbers
15th
Christmas Trees
7th
Collatz
6th
382nd
40th
CSS Colors
15th
Day of Week
1st
Diamonds
8th
Divisors
11th
1,151st
Emirp Numbers
16th
Emirp Numbers (Long)
6th
Emojify
6th
Evil Numbers
25th
729th
Evil Numbers (Long)
14th
326th
Farey Sequence
10th
Fibonacci
7th
1,375th
Fizz Buzz
100th
508th
32nd
442nd
1,116th
175th
61st
81st
67th
1st
988th
116th
210th
199th
32nd
26th
Foo Fizz Buzz Bar
23rd
2nd
332nd
Fractions
7th
357th
Happy Numbers
19th
Happy Numbers (Long)
6th
Inventory Sequence
8th
ISBN
10th
Kolakoski Sequence
9th
Leap Years
1st
748th
Leyland Numbers
9th
Look and Say
7th
Lucky Numbers
5th
Medal Tally
6th
Niven Numbers
28th
Niven Numbers (Long)
3rd
Number Spiral
6th
Odious Numbers
21st
521st
Odious Numbers (Long)
12th
248th
Ordinal Numbers
6th
Pangram Grep
15th
Pascalβs Triangle
11th
Pernicious Numbers
31st
469th
Pernicious Numbers (Long)
9th
Prime Numbers
18th
872nd
Prime Numbers (Long)
11th
Quine
37th
RecamΓ‘n
11th
Reverse Polish Notation
10th
Rock-paper-scissors-Spock-lizard
6th
Roman to Arabic
10th
Seven Segment
8th
SierpiΕski Triangle
13th
Star Wars Opening Crawl
5th
Ten-pin Bowling
7th
Time Distance
5th
Tongue-twisters
13th
256th
United States
11th
Vampire Numbers
9th
Van Eck Sequence
12th
Ο
14th