Number of n X n 0..1 arrays with no 1 equal to more than one of its king-move neighbors, with the exception of exactly two elements.

A282830

Number of n X n 0..1 arrays with no 1 equal to more than one of its king-move neighbors, with the exception of exactly two elements.

Terms

    a(0) =0a(1) =0a(2) =18a(3) =2376a(4) =215304a(5) =54433534a(6) =25269280218

External references