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A146916
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Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 0100-1110-0111-0010 pattern in any orientation.
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0
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1, 1, 1, 3, 1, 5, 9, 25, 65, 311, 777, 5163, 19629, 179101, 938309, 11522939, 83049733, 1385281995, 13583413581, 310426685067, 4145583315227, 129859229238145
(list; graph; refs; listen; history; internal format)
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