Number of (n+1) X 7 0..3 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and no 2 X 2 subblock having the same number of counterclockwise edge increases as its vertical neighbors.

A205657

Number of (n+1) X 7 0..3 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and no 2 X 2 subblock having the same number of counterclockwise edge increases as its vertical neighbors.

Terms

    a(0) =7854572a(1) =76028256a(2) =711793356a(3) =10795687000a(4) =183567605276

External references