12 Days of Christmas
6th
99 Bottles of Beer
17th
Abundant Numbers
12th941st
Abundant Numbers (Long)
6th
Arithmetic Numbers
7th
Arrows
12th
ASCII Table
8th
Catalan Numbers
17th
Christmas Trees
9th
Collatz
14th538th
57th
CSS Colors
17th
Day of Week
1st
Diamonds
8th
Divisors
15th1,322nd
Emirp Numbers
18th
Emirp Numbers (Long)
7th
Emojify
6th
Evil Numbers
25th880th
Evil Numbers (Long)
17th461st
Farey Sequence
11th
Fibonacci
8th1,652nd
Fizz Buzz
120th616th37th515th1,265th202nd66th92nd143rd1st1,177th124th240th241st43rd31st
Foo Fizz Buzz Bar
28th
1st437th
Fractions
8th491st
Happy Numbers
20th
Happy Numbers (Long)
7th
Inventory Sequence
10th
ISBN
12th
Kolakoski Sequence
10th
Leap Years
1st913th
Leyland Numbers
8th
Look and Say
8th
Lucky Numbers
7th
Medal Tally
7th
Niven Numbers
28th
Niven Numbers (Long)
3rd
Number Spiral
6th
Odious Numbers
23rd635th
Odious Numbers (Long)
17th359th
Ordinal Numbers
9th
Pangram Grep
16th
Partition Numbers
8th
Pascal’s Triangle
13th
Pernicious Numbers
33rd554th
Pernicious Numbers (Long)
13th
Prime Numbers
16th1,030th
Prime Numbers (Long)
15th
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
14th306th
Transpose Sentence
3rd
United States
12th
Vampire Numbers
8th
Van Eck Sequence
14th
Zeckendorf Representation
8th
π
15th