Number of (n+1)X4 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant.

A186213

Number of (n+1)X4 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant.

Terms

    a(0) =609a(1) =18873a(2) =308593a(3) =6275745a(4) =116461359a(5) =2259545215a(6) =43035959317a(7) =826432933951

External references