Number of (n+2)X(3+2) 0..3 arrays with every consecutive three elements in every row and column having exactly two distinct values, and new values 0 upwards introduced in row major order.

A252901

Number of (n+2)X(3+2) 0..3 arrays with every consecutive three elements in every row and column having exactly two distinct values, and new values 0 upwards introduced in row major order.

Terms

    a(0) =19320a(1) =306680a(2) =4385530a(3) =66702186a(4) =990142582a(5) =14924920644a(6) =223188511528

External references