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A147058
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Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 0100-1101-0111 pattern in any orientation.
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0
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1, 1, 1, 1, 1, 17, 47, 213, 1235, 4969, 37883, 407179, 4619435, 65431997, 1207923913, 24951197669, 667166329171
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