Number of nX6 arrays of occupancy after each element moves to some horizontal or vertical neighbor, without 2-loops or left turns.

A221767

Number of nX6 arrays of occupancy after each element moves to some horizontal or vertical neighbor, without 2-loops or left turns.

Terms

    a(0) =0a(1) =55a(2) =3125a(3) =141177a(4) =7115200a(5) =347487163a(6) =16949434757a(7) =827634377153

External references