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

A067966

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

Terms

    a(0) =1a(1) =2a(2) =9a(3) =125a(4) =4096a(5) =371293a(6) =85766121a(7) =52523350144

External references