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%I #5 Mar 31 2012 12:37:18
%S 21,441,2307,19909,137719,1048423,7666319,57113109,422082891,
%T 3130112351,23173976223,171676789835,1271417316909,9417475398607,
%U 69753625991829,516671332697659,3826965495103137,28346096345105751,209956452832167033
%N Number of nX6 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically
%C Column 6 of A207519
%H R. H. Hardin, <a href="/A207517/b207517.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..1..1..0..1..1..1....1..0..1..1..1..0....0..1..1..0..1..1....1..1..0..1..1..1
%e ..1..0..0..0..0..0....0..1..1..1..1..0....0..1..1..1..1..0....0..0..0..0..0..0
%e ..0..0..0..0..0..0....0..1..1..1..0..0....1..0..1..1..0..0....0..0..0..0..0..0
%e ..0..1..1..1..1..0....0..0..0..0..0..0....1..0..0..0..0..0....0..1..1..1..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 18 2012
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