Number of (n+1)X7 0..2 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.

A205734

Number of (n+1)X7 0..2 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) =218034a(1) =376314a(2) =2565900a(3) =7713324a(4) =84974904a(5) =276139080a(6) =3069752670a(7) =10194154164a(8) =115813704396a(9) =385448895840

External references