12 Days of Christmas
8th
99 Bottles of Beer
11th
Abundant Numbers
8th
Abundant Numbers (Long)
136th8th
Arabic to Roman
35th
Christmas Trees
7th
Collatz
8th
Day of Week
1st
Divisors
1st
Evil Numbers
1st10th
Evil Numbers (Long)
47th8th
Fibonacci
212th10th
Fizz Buzz
238th7th
Foo Fizz Buzz Bar
149th9th
Forsyth–Edwards Notation
5th
Happy Numbers (Long)
8th
Inventory Sequence
5th
Jacobi Symbol
4th
Leap Years
11th
Levenshtein Distance
10th
Leyland Numbers
6th
Look and Say
6th
Lucky Numbers
5th
Niven Numbers
13th
Niven Numbers (Long)
9th
Number Spiral
5th
Odious Numbers
1st10th
Odious Numbers (Long)
1st9th
Pascal’s Triangle
1st
Pernicious Numbers
1st8th
Prime Numbers
1st
Prime Numbers (Long)
67th1st
Quine
92nd
Recamán
6th
Roman to Arabic
29th
SI Units
3rd
United States
1st
Van Eck Sequence
6th