Number of ways to reciprocally link elements of an nX5 array either to themselves or to exactly two horizontal, vertical and antidiagonal neighbors, without consecutive collinear links.

A220678

Number of ways to reciprocally link elements of an nX5 array either to themselves or to exactly two horizontal, vertical and antidiagonal neighbors, without consecutive collinear links.

Terms

    a(0) =1a(1) =64a(2) =968a(3) =21380a(4) =468036a(5) =9973284a(6) =215926776a(7) =4649097520a(8) =100274426148

External references