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A207164
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Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 1 vertically
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1
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2, 16, 90, 603, 3445, 15789, 98224, 645217, 3227100, 18747520, 128798244, 720878886, 4180036645, 28917238756, 176708726320, 1057330250552, 7322809072734, 47678383274385, 297647051017140, 2072720881428948
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