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

A067963

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

Terms

    a(0) =2a(1) =7a(2) =77a(3) =1152a(4) =56549a(5) =3837761a(6) =806190208a(7) =251170142257

External references