Number of (n+2)X(n+2) 0..2 arrays with no element unequal to a strict majority of its horizontal, vertical, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.

A231220

Number of (n+2)X(n+2) 0..2 arrays with no element unequal to a strict majority of its horizontal, vertical, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.

Terms

    a(0) =1a(1) =4a(2) =21a(3) =182a(4) =4298a(5) =117178a(6) =5930126a(7) =495739986

External references