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A318210
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Number of nX4 0..1 arrays with every element unequal to 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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1
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2, 10, 21, 69, 245, 698, 2321, 7528, 24531, 80826, 263430, 865328, 2842893, 9337446, 30698901, 100854560, 331565806, 1089746855, 3582297494, 11775723803, 38708636705, 127247937304, 418290582504, 1375050737435, 4520146432969
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