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A146240
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Number of n X n binary arrays with all ones connected only in a 110-111-010 pattern in any orientation.
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0
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1, 1, 5, 17, 55, 445, 7601, 166611, 5058693, 255201297, 21434365863, 2739845770351, 552080325938657, 172381380433171337, 85160758251140175729
(list; graph; refs; listen; history; internal format)
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