Number of (n+1)X8 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one, and every 2X2 determinant nonzero.

A205925

Number of (n+1)X8 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one, and every 2X2 determinant nonzero.

Terms

    a(0) =1035724a(1) =25017018a(2) =98991836a(3) =3047588270a(4) =10728448308a(5) =454195592550

External references