Number of nX5 0..2 arrays with exactly floor(nX5/2) elements equal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order.

A222916

Number of nX5 0..2 arrays with exactly floor(nX5/2) elements equal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Terms

    a(0) =16a(1) =654a(2) =17518a(3) =1309863a(4) =26742406a(5) =2133576918a(6) =43875762623

External references