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A207447 Number of 7Xn 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically.

%I A207447 #7 Jul 22 2025 20:27:09
%S A207447 35,1225,14743,165626,2078416,24609889,284247216,3316383098,
%T A207447 38630942068,448234580146,5204017590681,60440346257235,
%U A207447 701591767463860,8143643192312255,94537663920104487,1097406693263337001
%N A207447 Number of 7Xn 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically.
%C A207447 Row 7 of A207442
%H A207447 R. H. Hardin, <a href="/A207447/b207447.txt">Table of n, a(n) for n = 1..210</a>
%e A207447 Some solutions for n=4
%e A207447 ..1..0..1..1....1..0..0..0....1..0..0..0....0..0..0..0....0..0..0..0
%e A207447 ..1..1..1..1....1..1..0..1....0..1..1..0....0..0..0..0....1..1..1..1
%e A207447 ..1..1..1..1....0..0..0..0....1..0..0..0....0..0..0..0....0..1..1..1
%e A207447 ..1..1..1..1....1..1..0..1....1..1..1..0....0..0..0..0....1..0..0..0
%e A207447 ..1..1..1..0....0..0..0..0....1..0..0..0....0..0..0..0....0..1..1..1
%e A207447 ..1..0..1..1....1..1..0..1....1..1..1..0....0..0..0..0....1..1..0..0
%e A207447 ..1..1..0..1....0..0..0..0....1..1..1..0....0..0..0..0....0..1..1..1
%K A207447 nonn
%O A207447 1,1
%A A207447 _R. H. Hardin_ Feb 17 2012