5951488domain: NAppears in sequencesRow sums of triangle A134417.at n=13A134418Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the medians of the diagonal and antidiagonal minus the two sums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=10A255762