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A305481
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Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 6 or 8 king-move adjacent elements, with upper left element zero.
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1
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21, 103, 125, 368, 1245, 3910, 11438, 34687, 106558, 317866, 952180, 2866802, 8566865, 25602599, 76565334, 228533963, 682228237, 2036249074, 6073671043, 18119697325, 54049396886, 161180119634, 480704637867, 1433586580256
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