Number of n X n 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element.

A283035

Number of n X n 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element.

Terms

    a(0) =0a(1) =4a(2) =119a(3) =9152a(4) =1604067a(5) =706205768a(6) =797350288363

External references