Number of nX5 0..3 arrays with no more than floor(nX5/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order.

A223040

Number of nX5 0..3 arrays with no more than floor(nX5/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order.