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A146195
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Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 101-111-100 pattern in any orientation.
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0
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1, 1, 1, 1, 5, 37, 165, 1001, 4705, 34363, 367959, 6088505, 78978585, 2279840895, 57010330201, 2094575171305, 78104783670439
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