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A147060
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Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 01010-11111 pattern in any orientation.
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0
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1, 1, 1, 1, 15, 5, 62, 17, 658, 107, 29884, 6487, 1659614, 327257, 258702145, 30361384, 78969868093, 6884718923, 35857505148152, 2535313045666, 36904503247120904, 2064458801309399, 80141381157325372643
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