Number of nX4 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 antidiagonally.

A229368

Number of nX4 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 antidiagonally.

Terms

    a(0) =60a(1) =869a(2) =13937a(3) =222990a(4) =3576912a(5) =56939585a(6) =911301584a(7) =14532090528a(8) =232232172607

External references