Number of (n+2)X8 0..3 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..3 introduced in row major order.

A204054

Number of (n+2)X8 0..3 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..3 introduced in row major order.

Terms

    a(0) =37451727a(1) =361569647a(2) =2404876738a(3) =18005605178a(4) =135508809479

External references