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A147066
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Number of n X n binary arrays symmetric under 180 degree rotation 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, 5, 13, 28, 77, 344, 1851, 11392, 75139, 594346, 5700553, 66311093, 914949886
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