Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

A316551

Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =21a(1) =127a(2) =129a(3) =430a(4) =1568a(5) =5265a(6) =18978a(7) =73409a(8) =276005a(9) =1055277a(10) =4099795a(11) =16069541a(12) =63171437a(13) =248867713a(14) =983343967a(15) =3892240605a(16) =15417744510a(17) =61119390728a(18) =242448097787a(19) =962127592502

External references