Number of zero-sum nX6 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.

A201801

Number of zero-sum nX6 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.

Terms

    a(0) =1751a(1) =235827a(2) =7099021a(3) =472565771a(4) =27941324053

External references