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A146789
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Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 0100-1100-1111 pattern in any orientation.
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0
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1, 1, 1, 1, 1, 1, 9, 15, 43, 69, 163, 581, 2209, 8241, 41447, 165505, 1023967, 5358635, 39185391, 257135019, 2265291735
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