12 Days of Christmas
6th
99 Bottles of Beer
17th
Abundant Numbers
12th886th
Abundant Numbers (Long)
6th
Arithmetic Numbers
7th
Arrows
12th
ASCII Table
8th
Catalan Numbers
16th
Christmas Trees
9th
Collatz
14th488th
53rd
CSS Colors
17th
Day of Week
1st
Diamonds
8th
Divisors
15th1,270th
Emirp Numbers
17th
Emirp Numbers (Long)
6th
Emojify
6th
Evil Numbers
25th826th
Evil Numbers (Long)
17th412th
Farey Sequence
11th
Fibonacci
8th1,566th
Fizz Buzz
113th582nd36th488th1,229th197th64th88th140th1st1,128th121st230th236th40th31st
Foo Fizz Buzz Bar
28th
1st403rd
Fractions
8th453rd
Happy Numbers
20th
Happy Numbers (Long)
7th
Inventory Sequence
10th
ISBN
12th
Kolakoski Sequence
10th
Leap Years
1st874th
Leyland Numbers
8th
Look and Say
8th
Lucky Numbers
7th
Medal Tally
7th
Niven Numbers
27th
Niven Numbers (Long)
3rd
Number Spiral
6th
Odious Numbers
21st597th
Odious Numbers (Long)
16th322nd
Ordinal Numbers
9th
Pangram Grep
16th
Pascal’s Triangle
13th
Pernicious Numbers
30th525th
Pernicious Numbers (Long)
13th
Prime Numbers
16th987th
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
14th283rd
Transpose Sentence
3rd
United States
12th
Vampire Numbers
8th
Van Eck Sequence
13th
Zeckendorf Representation
8th
π
15th