5905580025domain: NAppears in sequencesa(n) = T(8,n), array T given by A047858.at n=28A048469Number of (n+1) X (7+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=26A250655