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A147434
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Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 1010-1111-0101 pattern in any orientation.
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0
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1, 1, 1, 1, 1, 1, 1, 5, 17, 31, 51, 113, 291, 823, 2647, 8411, 31311, 121645, 537901, 2460285, 12092291, 63560047, 371846157, 2296989649
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