133348domain: NAppears in sequencesNumber of (6+1) X (n+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.at n=29A258559a(n) = a(n-1) + rotate(a(n-1), n-1 digits left) with a(1) = 1.at n=14A374734