Number of nX7 0..2 arrays with every element neighboring horizontally or vertically both a 0 and a 1.

A203541

Number of nX7 0..2 arrays with every element neighboring horizontally or vertically both a 0 and a 1.

Terms

    a(0) =0a(1) =676a(2) =69920a(3) =8479744a(4) =1680210240a(5) =257720706244

External references