12 Days of Christmas
6th
99 Bottles of Beer
17th
Abundant Numbers
12th858th
Abundant Numbers (Long)
6th
Arithmetic Numbers
7th
Arrows
12th
ASCII Table
8th
Catalan Numbers
16th
Christmas Trees
9th
Collatz
7th461st
52nd
CSS Colors
17th
Day of Week
1st
Diamonds
8th
Divisors
14th1,247th
Emirp Numbers
16th
Emirp Numbers (Long)
6th
Emojify
6th
Evil Numbers
25th806th
Evil Numbers (Long)
17th397th
Farey Sequence
11th
Fibonacci
8th1,531st
Fizz Buzz
110th571st35th480th1,207th194th64th87th137th1st1,114th120th223rd231st39th30th
Foo Fizz Buzz Bar
28th
1st392nd
Fractions
8th435th
Happy Numbers
19th
Happy Numbers (Long)
7th
Inventory Sequence
10th
ISBN
12th
Kolakoski Sequence
10th
Leap Years
1st849th
Leyland Numbers
8th
Look and Say
8th
Lucky Numbers
6th
Medal Tally
7th
Niven Numbers
27th
Niven Numbers (Long)
3rd
Number Spiral
6th
Odious Numbers
21st581st
Odious Numbers (Long)
16th308th
Ordinal Numbers
7th
Pangram Grep
16th
Pascal’s Triangle
13th
Pernicious Numbers
30th513th
Pernicious Numbers (Long)
11th
Prime Numbers
15th966th
Prime Numbers (Long)
13th
Quine
1st
Recamán
12th
Reverse Polish Notation
10th
Rock-paper-scissors-Spock-lizard
8th
Roman to Arabic
12th
ROT13
6th
Seven Segment
5th
Sierpiński Triangle
15th
Star Wars Opening Crawl
5th
Ten-pin Bowling
7th
Tic-tac-toe
8th
Time Distance
5th
Tongue-twisters
14th272nd
Transpose Sentence
3rd
United States
12th
Vampire Numbers
8th
Van Eck Sequence
13th
Zeckendorf Representation
8th
π
15th