**If you have an n by m grid of points, you can connect 4 points to make a square in (2mn^3-2mn-2n^4+n^...**

If you have an n by m grid of points, you can connect 4 points to make a square in (2mn^3-2mn-2n^4+n^2)/12 different ways.

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Syndicated 2012-12-06 02:52:15 from David Barksdale - Google+ Posts