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A207692 Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 1 vertically.

%I A207692 #7 Jul 22 2025 20:40:56
%S A207692 40,1600,1296,5856,18564,50096,145200,453420,1403184,4038800,12177100,
%T A207692 36992544,110036104,332138592,989787144,2977771420,8964400760,
%U A207692 26737629576,80548970652,241336844800,723444785800,2175007306820
%N A207692 Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 1 vertically.
%C A207692 Column 7 of A207693
%H A207692 R. H. Hardin, <a href="/A207692/b207692.txt">Table of n, a(n) for n = 1..210</a>
%e A207692 Some solutions for n=4
%e A207692 ..1..1..1..1..1..0..0....0..0..1..1..1..0..1....1..0..1..1..0..1..1
%e A207692 ..1..1..0..0..1..1..1....1..1..0..0..1..1..0....1..1..0..1..1..0..0
%e A207692 ..0..0..1..1..0..0..1....0..0..1..1..0..1..1....0..1..1..0..0..1..1
%e A207692 ..0..1..1..0..1..1..0....0..1..1..1..0..0..1....1..0..0..1..1..0..0
%K A207692 nonn
%O A207692 1,1
%A A207692 _R. H. Hardin_ Feb 19 2012