Number of n X n binary arrays with every one adjacent to another one horizontally, diagonally, antidiagonally or vertically.

A202788

Number of n X n binary arrays with every one adjacent to another one horizontally, diagonally, antidiagonally or vertically.

Terms

    a(0) =1a(1) =12a(2) =398a(3) =45519a(4) =21649928a(5) =41382940317

External references