2520461647domain: NAppears in sequencesNumber of (n+1)X(2+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock equal.at n=6A238174Number of (n+1)X(7+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock equal.at n=1A238179