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A146829
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Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 1000-1111-0100-0100 pattern in any orientation.
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0
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1, 1, 1, 1, 1, 1, 1, 5, 29, 45, 85, 149, 631, 1787, 7789, 27255, 169603, 656441, 4413871, 19468207, 157401839
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