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A146450
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Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 1100-0110-0011 pattern in any orientation.
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0
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 7, 7, 15, 15, 49, 49, 233, 233, 1205, 1205, 7091, 7091, 56369, 56369, 554977, 554977, 6653663, 6653663
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