Number of (n+1)X5 0..7 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.

A203731

Number of (n+1)X5 0..7 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.

Terms

    a(0) =3240000a(1) =681461824a(2) =161916229056

External references