Number of 6Xn 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 1 1 vertically.

A207686

Number of 6Xn 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 1 1 vertically.

Terms

    a(0) =18a(1) =324a(2) =660a(3) =2032a(4) =4728a(5) =11994a(6) =29982a(7) =77141a(8) =193184a(9) =485658a(10) =1213580a(11) =3090430a(12) =7754424a(13) =19478100a(14) =49010084a(15) =123869662a(16) =311515934a(17) =782045058a(18) =1972950126a(19) =4972883946a(20) =12497401442a(21) =31449373036a(22) =79304725202a(23) =199577343966

External references