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A147080
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Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 10000-11111-10000 pattern in any orientation.
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0
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 4, 1, 9, 3, 31, 9, 107, 21, 322, 61, 1322, 210, 6485, 735, 37564
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