Number of (n+2)X9 binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals.

A202646

Number of (n+2)X9 binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals.

Terms

    a(0) =25526a(1) =224940a(2) =2443538a(3) =27264078a(4) =304200608a(5) =3423531924a(6) =38841628112a(7) =440204384164

External references