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A207517 Number of nX6 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically.

%I A207517 #7 Jul 22 2025 20:32:09
%S A207517 21,441,2307,19909,137719,1048423,7666319,57113109,422082891,
%T A207517 3130112351,23173976223,171676789835,1271417316909,9417475398607,
%U A207517 69753625991829,516671332697659,3826965495103137,28346096345105751,209956452832167033
%N A207517 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 A207517 Column 6 of A207519
%H A207517 R. H. Hardin, <a href="/A207517/b207517.txt">Table of n, a(n) for n = 1..210</a>
%e A207517 Some solutions for n=4
%e A207517 ..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 A207517 ..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 A207517 ..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 A207517 ..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 A207517 nonn
%O A207517 1,1
%A A207517 _R. H. Hardin_ Feb 18 2012