Number of zero-sum nX7 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.

A201802

Number of zero-sum nX7 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.

Terms

    a(0) =8135a(1) =1972115a(2) =90062519a(3) =10857153407

External references