Number of n X n 0..1 arrays with no 1 equal to more than two of its king-move neighbors.

A282521

Number of n X n 0..1 arrays with no 1 equal to more than two of its king-move neighbors.

Terms

    a(0) =2a(1) =15a(2) =206a(3) =10041a(4) =1207312a(5) =398640091a(6) =361721564040

External references