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A183435
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Number of n X 2 binary arrays with every 1 having exactly one king-move neighbor equal to 1.
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2
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2, 7, 13, 28, 69, 149, 330, 755, 1681, 3756, 8457, 18937, 42418, 95183, 213349, 478204, 1072285, 2403885, 5388986, 12082011, 27086537, 60724492, 136139073, 305209713, 684246754, 1534012759, 3439098365, 7710098140, 17285247541, 38751739141
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