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A146234
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Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 110-111-001 pattern in any orientation.
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0
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1, 1, 1, 1, 1, 1, 9, 9, 33, 33, 113, 113, 1393, 1393, 59521, 59521, 1585365, 1585365, 62771429, 62771429, 6390256297, 6390256297, 1169289395909, 1169289395909
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