Number of ways to reciprocally link elements of an 6Xn array either to themselves or to exactly one horizontal or antidiagonal neighbor.

A220567

Number of ways to reciprocally link elements of an 6Xn array either to themselves or to exactly one horizontal or antidiagonal neighbor.

Terms

    a(0) =1a(1) =233a(2) =6076a(3) =338581a(4) =14298089a(5) =665748170a(6) =29955561052

External references