Number of nX7 0..2 arrays with exactly floor(nX7/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

A223103

Number of nX7 0..2 arrays with exactly floor(nX7/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Terms

    a(0) =40a(1) =86726a(2) =82588214a(3) =123093376161

External references