Number of (n+2)X5 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.

A204051

Number of (n+2)X5 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) =80391a(1) =756338a(2) =5257444a(3) =39646479a(4) =315429190a(5) =2404876738a(6) =18455232523a(7) =141708188218

External references