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A202741
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Number of n X 7 0..1 arrays with row sums equal and column sums unequal to adjacent columns.
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0
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2, 214, 14258, 613950, 24620522, 967878370, 37121438930, 1401569558590, 52383342552410, 1938999772255314, 71224141762895090
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