Each cell on an $n \times n$ checkerboard is to be painted black or white.
How many ways are there to paint the board such that each column and each row contains an even number of black cells?
How many ways are there to paint it such that each column and row contains an odd number of black cells?
Showing posts with label black cells. Show all posts
Showing posts with label black cells. Show all posts
Monday, October 25, 2010
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