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A304927
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Number of n X n 0..1 arrays with every element unequal to 0, 1, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
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0
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1, 5, 13, 73, 452, 2653, 15993, 118024, 920997, 12184613, 162877680, 2507024025, 36984184204, 682363665419
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