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A146200
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Number of nXn arrays of squares of integers with every (n-3)X(n-3) subblock summing to 6 and every element equal to at least one neighbor.
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1
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0, 168, 107441, 902774, 3692732, 11295174, 28865676, 65031988, 133191360, 253050012, 452373900, 768956436, 1252803248, 1968533980
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