12 Days of Christmas
564767
99 Bottles of Beer
662620
Abundant Numbers
493
Abundant Numbers (Long)
538
Arabic to Roman
494
Arithmetic Numbers
518
Arrows
220
Card Number Validation
471
Christmas Trees
139
Collatz
534637
CSS Colors
180
Diamonds
244173
Divisors
519
Emirp Numbers
390
Emirp Numbers (Long)
433
Evil Numbers
480
Evil Numbers (Long)
493702
Fibonacci
549888
Fizz Buzz
609
Foo Fizz Buzz Bar
368
Fractions
477
Happy Numbers
402
ISBN
503
Niven Numbers
506710
Number Spiral
275
Odious Numbers
487713
Odious Numbers (Long)
492700
Pernicious Numbers
431
Pernicious Numbers (Long)
495
Prime Numbers
464456
Prime Numbers (Long)
473
Rock-paper-scissors-Spock-lizard
416
Tongue-twisters
550
π
1193211363