Number of (n+1)X6 0..3 arrays with every 2X2 subblock having nonzero determinant and having the same number of clockwise edge increases as its horizontal and vertical neighbors.

A205765

Number of (n+1)X6 0..3 arrays with every 2X2 subblock having nonzero determinant and having the same number of clockwise edge increases as its horizontal and vertical neighbors.

Terms

    a(0) =462040a(1) =77757894a(2) =14312320196

External references