12 Days of Christmas
603
766
99 Bottles of Beer
751
620
Abundant Numbers
722
Abundant Numbers (Long)
765
Arabic to Roman
575
Arithmetic Numbers
699
Arrows
271
Card Number Validation
577
Christmas Trees
192
Collatz
749
686
CSS Colors
179
Diamonds
311
173
Divisors
755
Evil Numbers
781
Evil Numbers (Long)
780
700
Fibonacci
900
888
Fizz Buzz
864
Foo Fizz Buzz Bar
463
Fractions
570
Happy Numbers
562
ISBN
615
Niven Numbers
791
709
Number Spiral
274
Odious Numbers
785
712
Odious Numbers (Long)
770
698
Pernicious Numbers
693
Pernicious Numbers (Long)
724
Prime Numbers
658
456
Rock-paper-scissors-Spock-lizard
462
Tongue-twisters
610
π
118
32
153
63