A305522 - OEIS

%I #4 Jun 04 2018 11:56:19

%S 64,8192,466858,23747613,1269418258,67425576120,3592436519091,

%T 191577652761963,10218588450186728,545224050326670079,

%U 29092517827360869418,1552454485592778642802,82844647343060190173654

%N Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.

%C Column 7 of A305523.

%H R. H. Hardin, <a href="/A305522/b305522.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305523.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 04 2018