Number of (n+2)X3 binary arrays avoiding patterns 000 and 010 in rows, columns and nw-to-se diagonals.

A202485

Number of (n+2)X3 binary arrays avoiding patterns 000 and 010 in rows, columns and nw-to-se diagonals.

Terms

    a(0) =108a(1) =324a(2) =1170a(3) =4225a(4) =14560a(5) =50176a(6) =174720a(7) =608400a(8) =2113020a(9) =7338681a(10) =25513362a(11) =88698724a(12) =308204050a(13) =1070925625a(14) =3722206950a(15) =12937242564a(16) =44959937760a(17) =156246278400a(18) =543023015040

External references