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

A067959

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

Terms

    a(0) =1a(1) =7a(2) =22a(3) =547a(4) =9021a(5) =812830a(6) =70046159a(7) =24082448515

External references