2097214domain: NAppears in sequencesRow sums of triangle A132073.at n=21A132074Number of (n+1) X (5+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nonincreasing x(i,j)-x(i-1,j) in the j direction.at n=19A250739