Abundant Numbers
20th
Abundant Numbers (Long)
13th
Christmas Trees
6th
Day of Week
5th68th
Diamonds
Divisors
41st
Evil Numbers
47th
Evil Numbers (Long)
33rd
Fibonacci
46th
Fizz Buzz
37th
Foo Fizz Buzz Bar
14th
Forsyth–Edwards Notation
6th
Fractions
7th
Niven Numbers
21st
Niven Numbers (Long)
15th
Number Spiral
16th
Odious Numbers
40th
Odious Numbers (Long)
29th
Prime Numbers
1st
Prime Numbers (Long)
1st
Rock-paper-scissors-Spock-lizard
6th