Number of n X n 0..2 arrays with no element equal to any value at offset (0,-2), (-1,-2) or (-2,-1) and new values introduced in order 0..2.

A275084

Number of n X n 0..2 arrays with no element equal to any value at offset (0,-2), (-1,-2) or (-2,-1) and new values introduced in order 0..2.

Terms

    a(0) =1a(1) =14a(2) =192a(3) =3088a(4) =87924a(5) =5038428a(6) =512150588a(7) =96851464412

External references