Number of nX6 arrays of occupancy after each element moves to some horizontal or vertical neighbor, with no 2-loops and with no occupancy greater than 2.

A217226

Number of nX6 arrays of occupancy after each element moves to some horizontal or vertical neighbor, with no 2-loops and with no occupancy greater than 2.

Terms

    a(0) =0a(1) =918a(2) =311988a(3) =102825095a(4) =31887740915

External references