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A147002
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Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 00100-00100-11111 pattern in any orientation.
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0
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1, 1, 1, 1, 1, 5, 20, 47, 155, 569, 2601, 13423, 95231, 685877, 6411543, 61586198
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