1/16 the number of (n+1)X(n+1) binary arrays with no 2X2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor.

A183803

1/16 the number of (n+1)X(n+1) binary arrays with no 2X2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor.

Terms

    a(0) =1a(1) =13a(2) =322a(3) =16953a(4) =1701473a(5) =360549804a(6) =148654946039

External references