12 Days of Christmas
837
Abundant Numbers (Long)
848
Arithmetic Numbers
381
Arrows
363
Card Number Validation
769
CSS Colors
250
Divisors
773
Game of Life
473
Intersection
701
Inventory Sequence
847
Look and Say
876
Lucky Numbers
600
Odious Numbers
588
Smith Numbers
569
Sudoku
500
Tongue-twisters
514
Zodiac Signs
744
√2
849