Number of 5X(n+1) 0..2 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..2 introduced in row major order.

A205629

Number of 5X(n+1) 0..2 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..2 introduced in row major order.

Terms

    a(0) =2160a(1) =13800a(2) =113592a(3) =1103436a(4) =11438856a(5) =122380932a(6) =1324746888a(7) =14418999468a(8) =157281072552

External references