A316756 - OEIS

%I #4 Jul 12 2018 11:45:44

%S 8,168,315,295,4397,23857,58615,399831,2330661,8452508,43422677,

%T 244219167,1085667753,5198650416,27357344048,132450119759,

%U 633779549006,3192101777945,15861698093325,76966813423383,380116339135931

%N Number of nX7 0..1 arrays with every element unequal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A316757.

%H R. H. Hardin, <a href="/A316756/b316756.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

%e ..0..0..1..1..1..1..1. .0..1..1..0..0..1..1. .0..1..1..1..1..1..1

%e ..1..1..1..0..1..0..1. .0..0..0..0..0..0..0. .0..1..1..0..1..0..1

%e ..1..1..1..1..1..1..1. .0..0..0..0..0..1..1. .1..1..1..1..1..1..1

%e ..1..0..1..1..1..1..1. .1..0..1..0..0..0..0. .1..0..1..1..1..1..1

%e ..1..1..0..1..0..0..1. .1..0..1..0..0..1..1. .1..0..1..1..0..0..1

%Y Cf. A316757.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 12 2018