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A147082
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Number of n X n binary arrays symmetric under 180 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, 9, 17, 37, 127, 477, 2126, 12479, 73108, 516995, 4269319, 43333873, 484061833
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