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%I #4 May 23 2018 16:14:41
%S 0,209,2000,62314,1575677,42306830,1125868355,30031715172,
%T 801023698345,21369269639027,570045639446500,15207204397589585,
%U 405680765015268913,10822338608421927292,288707417174930265988,7701843313415562030774
%N Number of nX6 0..1 arrays with every element unequal to 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
%C Column 6 of A305022.
%H R. H. Hardin, <a href="/A305020/b305020.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..1..0..0..1..0. .0..1..1..1..0..1. .0..1..1..0..0..1. .0..1..0..1..1..0
%e ..0..1..1..1..1..1. .0..1..0..0..0..1. .0..1..1..0..0..1. .0..1..1..0..0..1
%e ..0..1..1..0..0..0. .0..1..0..0..0..1. .0..1..0..0..1..1. .0..0..1..1..0..1
%e ..1..1..0..0..0..0. .1..0..1..1..1..0. .1..1..0..1..1..0. .1..0..1..0..1..0
%e ..0..1..0..1..1..1. .0..1..1..0..1..0. .0..0..1..0..1..0. .0..1..1..0..0..1
%Y Cf. A305022.
%K nonn
%O 1,2
%A _R. H. Hardin_, May 23 2018
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