2478121687domain: NAppears in sequencesNumber of (n+1)X(2+1) 0..2 arrays with the maximum minus the minimum of every 2X2 subblock equal.at n=6A237939Number of (n+1)X(7+1) 0..2 arrays with the maximum minus the minimum of every 2X2 subblock equal.at n=1A237944