206705746domain: NAppears in sequencesNumber of (n+1)X2 0..2 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.at n=7A187433Number of (n+1)X9 0..2 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.at n=0A187440