Number of nX4 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally or vertically, top left element zero, and 1 appearing before 2 in row major order.

A233014

Number of nX4 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally or vertically, top left element zero, and 1 appearing before 2 in row major order.

Terms

    a(0) =14a(1) =515a(2) =19643a(3) =750092a(4) =28644884a(5) =1093911305a(6) =41775098873

External references