Number of nX3 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements.

A283629

Number of nX3 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements.

Terms

    a(0) =0a(1) =0a(2) =37a(3) =388a(4) =3729a(5) =28828a(6) =203025a(7) =1325980a(8) =8216341a(9) =48912768a(10) =282293033a(11) =1589466368a(12) =8771503165a(13) =47606031352a(14) =254776347029

External references