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Authored by: rgray on May 09, '06 11:07:30AM

In general, the sum of all the combinations of n distinct things is 2 to the 'n'th power.

2 parents + 1 kid = 3, there are 2-cubed or 8 combinations!
2 parents + 2 kids = 4, or 2 to the 4th which is 16...



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