Abundant Numbers
19th
Abundant Numbers (Long)
12th
Christmas Trees
6th
Day of Week
4th62nd
Diamonds
Divisors
39th
Evil Numbers
44th
Evil Numbers (Long)
30th
Fibonacci
43rd
Fizz Buzz
35th
Foo Fizz Buzz Bar
13th
Forsyth–Edwards Notation
6th
Fractions
7th
Niven Numbers
19th
Niven Numbers (Long)
13th
Number Spiral
15th
Odious Numbers
38th
Odious Numbers (Long)
27th
Prime Numbers
1st
Prime Numbers (Long)
1st
Rock-paper-scissors-Spock-lizard
6th