12 Days of Christmas
88th668th
99 Bottles of Beer
39th571st
Abundant Numbers
97th
Abundant Numbers (Long)
48th
Arabic to Roman
22nd
Arithmetic Numbers
29th
Arrows
33rd
Card Number Validation
15th
Christmas Trees
60th
Collatz
70th579th
CSS Colors
23rd
Diamonds
45th503rd
Divisors
98th
Emirp Numbers
41st
Emirp Numbers (Long)
15th
Evil Numbers
62nd
Evil Numbers (Long)
34th379th
Fibonacci
108th820th
Fizz Buzz
302nd
Foo Fizz Buzz Bar
105th
Fractions
41st
Happy Numbers
45th
ISBN
33rd
Niven Numbers
52nd483rd
Number Spiral
164th
Odious Numbers
54th617th
Odious Numbers (Long)
31st323rd
Pernicious Numbers
41st
Pernicious Numbers (Long)
24th
Prime Numbers
103rd985th
Prime Numbers (Long)
51st
Rock-paper-scissors-Spock-lizard
14th
Tongue-twisters
27th
π
22nd33rd59th447th