8613504domain: NAppears in sequencesNumber of (n+1) X 6 0..2 arrays with every 2 X 3 or 3 X 2 subblock having exactly two counterclockwise and two clockwise edge increases.at n=6A206091Number of (n+1) X 8 0..2 arrays with every 2 X 3 or 3 X 2 subblock having exactly two counterclockwise and two clockwise edge increases.at n=4A206093