Number of binary arrangements without adjacent 1's on n X n torus connected n-s.

A067961

Number of binary arrangements without adjacent 1's on n X n torus connected n-s.

Terms

    a(0) =1a(1) =9a(2) =64a(3) =2401a(4) =161051a(5) =34012224a(6) =17249876309

External references