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%I #4 May 07 2018 09:03:19
%S 0,209,464,10182,100942,1100030,12806826,145611915,1634366796,
%T 18705511944,212059052175,2407657052300,27373214633586,
%U 310882017371350,3531677134837950,40125778624890437,455828883517634560
%N Number of nX6 0..1 arrays with every element unequal to 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.
%C Column 6 of A304156.
%H R. H. Hardin, <a href="/A304154/b304154.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..1..0..1..0..1. .0..0..1..0..1..1. .0..1..0..0..1..0. .0..1..0..0..1..0
%e ..1..0..1..0..0..1. .1..1..0..0..0..0. .1..0..0..1..1..0. .1..0..0..1..1..0
%e ..0..1..0..1..1..1. .1..0..1..0..0..1. .0..0..1..0..1..1. .0..0..1..1..1..0
%e ..1..1..1..1..0..0. .1..0..1..0..0..1. .1..0..1..0..1..0. .0..1..0..1..0..0
%e ..0..0..1..0..1..1. .0..1..1..1..0..1. .1..0..0..1..1..0. .0..1..0..1..1..1
%Y Cf. A304156.
%K nonn
%O 1,2
%A _R. H. Hardin_, May 07 2018
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