October 10, 2015

Homework Help: Math (please help me Steve)

Posted by Mark on Monday, July 8, 2013 at 6:58pm.

The squares of a 33 grid are filled with non-negative integers such that the sum of each row and the sum of each column is 7. How many different ways can the squares be filled? The numbers in each grid square does not need to be distinct. Rotations and reflections are distinct arrangements.

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