6416948063domain: NAppears in sequencesNumber of (n+1) X 3 0..4 arrays with column and row pair sums b(i,j) = a(i,j)+a(i,j-1) and c(i,j) = a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.at n=8A203864