Number of (7+1)X(n+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.

A250639

Number of (7+1)X(n+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) =18131a(1) =130848a(2) =994281a(3) =6421141a(4) =37072806a(5) =195029867a(6) =955747123a(7) =4434468137a(8) =19743654581a(9) =85056866597a(10) =357013012798

External references