Number of (n+1)X(n+1) 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one.

A206046

Number of (n+1)X(n+1) 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one.

Terms

    a(0) =48a(1) =2310a(2) =295392a(3) =99399924a(4) =86276125692

External references