12 Days of Christmas
16th
99 Bottles of Beer
17th
Abundant Numbers
12th
761st
Abundant Numbers (Long)
5th
Arithmetic Numbers
6th
Arrows
12th
ASCII Table
7th
Catalan Numbers
15th
Christmas Trees
7th
Collatz
6th
385th
40th
CSS Colors
15th
Day of Week
1st
Diamonds
8th
Divisors
11th
1,153rd
Emirp Numbers
16th
Emirp Numbers (Long)
6th
Emojify
6th
Evil Numbers
25th
729th
Evil Numbers (Long)
14th
328th
Farey Sequence
10th
Fibonacci
7th
1,383rd
Fizz Buzz
101st
510th
32nd
443rd
1,120th
175th
61st
82nd
68th
1st
993rd
117th
210th
200th
32nd
26thFoo Fizz Buzz Bar
24th
4th
335th
Fractions
7th
361st
Happy Numbers
19th
Happy Numbers (Long)
6th
Inventory Sequence
8th
ISBN
10th
Kolakoski Sequence
9th
Leap Years
1st
750th
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
522nd
Odious Numbers (Long)
12th
249th
Ordinal Numbers
6th
Pangram Grep
15th
Pascal’s Triangle
11th
Pernicious Numbers
31st
472nd
Pernicious Numbers (Long)
9th
Prime Numbers
18th
877th
Prime Numbers (Long)
11th
Quine
1st
Recamán
11th
Reverse Polish Notation
10th
Rock-paper-scissors-Spock-lizard
6th
Roman to Arabic
11th
Seven Segment
8th
Sierpiński Triangle
13th
Star Wars Opening Crawl
5th
Ten-pin Bowling
7th
Time Distance
5th
Tongue-twisters
13th
260th
United States
12th
Vampire Numbers
9th
Van Eck Sequence
12th
π
14th