Number of nX4 0..2 arrays with no element equal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

A279532

Number of nX4 0..2 arrays with no element equal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

Terms

    a(0) =3a(1) =222a(2) =21430a(3) =1585524a(4) =102868091a(5) =6167352480a(6) =349780411336

External references