Number of n X n 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.

A283566

Number of n X n 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.

Terms

    a(0) =0a(1) =4a(2) =169a(3) =6812a(4) =945100a(5) =226897932a(6) =129997769458

External references