Number of (5+1)X(n+1) 0..3 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.

A250712

Number of (5+1)X(n+1) 0..3 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) =38431a(1) =735523a(2) =11250902a(3) =133888216a(4) =1325146542a(5) =11455263558a(6) =89662106062a(7) =650918690817

External references