Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 1 0 1 vertically.

A208033

Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 1 0 1 vertically.

Terms

    a(0) =2a(1) =16a(2) =102a(3) =961a(4) =21147a(5) =811801a(6) =44918280a(7) =4186478209a(8) =714320063886

External references