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A207777 Number of 7Xn 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 0 vertically.

%I A207777 #7 Jul 22 2025 20:50:08
%S A207777 31,961,2040,20104,157472,759482,6513576,49975640,259077468,
%T A207777 2150453548,15981869071,87310201135,709311394273,5137197417469,
%U A207777 29284543214864,233502033554208,1657717100658198,9791967204391982,76739391151731042
%N A207777 Number of 7Xn 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 0 vertically.
%C A207777 Row 7 of A207774
%H A207777 R. H. Hardin, <a href="/A207777/b207777.txt">Table of n, a(n) for n = 1..210</a>
%e A207777 Some solutions for n=4
%e A207777 ..0..0..1..0....1..0..0..1....0..1..0..1....1..1..0..0....0..1..0..0
%e A207777 ..0..1..1..0....0..1..0..1....1..0..0..1....0..1..1..0....0..0..1..0
%e A207777 ..0..1..1..0....0..1..0..0....1..1..0..1....1..0..1..0....0..1..1..0
%e A207777 ..0..1..0..0....0..1..0..1....0..1..0..0....1..1..0..0....0..1..1..0
%e A207777 ..0..1..1..0....0..1..0..1....1..1..0..0....0..1..1..0....0..0..1..0
%e A207777 ..0..0..1..0....0..1..0..1....1..1..0..0....0..0..1..0....0..1..1..0
%e A207777 ..0..1..0..0....0..1..0..1....0..1..0..0....0..0..1..0....0..1..1..0
%K A207777 nonn
%O A207777 1,1
%A A207777 _R. H. Hardin_ Feb 20 2012