12 Days of Christmas
432
Abundant Numbers (Long)
837
Arithmetic Numbers
377
Arrows
468
Card Number Validation
758
CSS Colors
119
Divisors
766
Game of Life
429
Intersection
627
Inventory Sequence
841
Look and Say
867
Lucky Numbers
593
Odious Numbers
585
Smith Numbers
509
Sudoku
308
Tongue-twisters
330
Zodiac Signs
680
√2
837