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A318076
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Number of nXn 0..1 arrays with every element unequal to 0, 1, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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0
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1, 3, 5, 22, 51, 314, 1851, 15876, 139346, 1719340, 26691372, 570681324
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