Number of (n+1) X (6+1) 0..2 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.

A250810

Number of (n+1) X (6+1) 0..2 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.

Terms

    a(0) =1296a(1) =5139a(2) =18537a(3) =62469a(4) =201741a(5) =634509a(6) =1962717a(7) =6007149a(8) =18260061a(9) =55258029a(10) =166730397a(11) =502104429a(12) =1510140381a(13) =4538075949a(14) =13629538077a(15) =40919235309a(16) =122818948701a(17) =368579332269

External references