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

A283779

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

Terms

    a(0) =0a(1) =5a(2) =60a(3) =745a(4) =7298a(5) =62303a(6) =496884a(7) =3767599a(8) =27544383a(9) =195862137a(10) =1362432578a(11) =9309699590a(12) =62681109851a(13) =416796696040

External references