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A147143
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Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 1000-1100-0110-0011 pattern in any orientation.
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0
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1, 1, 1, 1, 3, 5, 7, 11, 39, 91, 199, 489, 1779, 6121, 21635, 87281, 429831
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