%I #4 Jun 07 2018 09:01:06
%S 64,752,2197,27110,282463,3252937,42274045,591351392,8584480725,
%T 124078351387,1818792685910,27004462368229,398796896918570,
%U 5911358831555626,87903132040052308,1303849881016486552
%N Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
%C Column 7 of A305642.
%H R. H. Hardin, <a href="/A305641/b305641.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..0..0..0..0..0. .0..0..0..0..1..1..0. .0..0..1..1..0..1..0
%e ..0..0..0..1..0..1..1. .0..0..0..0..0..0..0. .0..0..0..0..0..0..0
%e ..0..1..1..1..1..0..0. .0..0..0..0..0..0..0. .0..0..1..1..1..0..0
%e ..1..0..1..0..0..1..1. .1..0..0..0..0..0..1. .0..1..0..0..1..0..0
%e ..0..0..0..0..0..1..1. .1..0..0..0..0..0..1. .0..0..1..0..0..0..0
%Y Cf. A305642.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jun 07 2018
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