Number of (n+2) X 3 0..2 arrays with no 3 X 3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..2 introduced in row major order.

A204775

Number of (n+2) X 3 0..2 arrays with no 3 X 3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..2 introduced in row major order.

Terms

    a(0) =2592a(1) =55296a(2) =1180224a(3) =25190406a(4) =537665796a(5) =11475976536a(6) =244944162648

External references