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A207466 Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 0 and 1 0 1 vertically.

%I A207466 #7 Jul 22 2025 20:27:43
%S A207466 25,625,3399,33393,247631,2090927,16675001,136803627,1107817969,
%T A207466 9020755725,73241249411,595437782873,4838237303149,39325402627329,
%U A207466 319598032561739,2597506529364501,21110282812302019,171568068317114121
%N A207466 Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 0 and 1 0 1 vertically.
%C A207466 Column 7 of A207467
%H A207466 R. H. Hardin, <a href="/A207466/b207466.txt">Table of n, a(n) for n = 1..210</a>
%e A207466 Some solutions for n=4
%e A207466 ..1..0..1..0..0..1..0....0..1..0..0..1..0..1....1..0..0..1..0..1..0
%e A207466 ..0..0..1..0..1..0..0....0..1..0..1..0..1..0....1..1..0..1..0..1..0
%e A207466 ..0..1..0..0..1..0..0....0..1..0..1..0..1..0....1..1..1..1..1..0..1
%e A207466 ..0..1..0..1..0..1..0....0..1..0..1..0..0..1....0..0..1..0..1..0..1
%K A207466 nonn
%O A207466 1,1
%A A207466 _R. H. Hardin_ Feb 18 2012