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A163013
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Number of nX4 binary arrays with all 1s connected and a path of 1s from top row to lower right corner
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1
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4, 44, 469, 4776, 48047, 482895, 4854639, 48809845, 490753552, 4934223120, 49610514652, 498802509247, 5015145456885, 50424133267633, 506982946384063, 5097394665460444, 51251097416909895, 515297550767237152
(list; graph; refs; listen; history; internal format)
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