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A206893 Number of 7Xn 0..1 arrays avoiding 0 1 0 horizontally and 1 0 0 vertically.

%I A206893 #7 Jul 22 2025 19:47:35
%S A206893 54,2916,82807,2070564,57268342,1648854501,47015346159,1328156697136,
%T A206893 37521598580023,1061970530807292,30067564211434697,851046751948225835,
%U A206893 24085315991411166967,681659412649184727059,19292878589062169424679
%N A206893 Number of 7Xn 0..1 arrays avoiding 0 1 0 horizontally and 1 0 0 vertically.
%C A206893 Row 7 of A206889
%H A206893 R. H. Hardin, <a href="/A206893/b206893.txt">Table of n, a(n) for n = 1..210</a>
%e A206893 Some solutions for n=4
%e A206893 ..0..1..1..0....0..1..1..0....1..1..0..0....1..0..1..1....1..1..0..0
%e A206893 ..0..1..1..1....1..0..1..1....0..0..0..1....1..1..1..1....1..1..0..0
%e A206893 ..0..1..1..1....1..1..0..1....1..1..1..1....1..1..1..1....0..0..0..1
%e A206893 ..0..1..1..0....1..1..1..0....1..0..1..1....1..1..1..1....1..1..1..1
%e A206893 ..1..0..1..1....0..0..0..1....1..1..0..0....1..1..1..1....0..0..1..1
%e A206893 ..1..1..0..1....1..1..1..1....0..0..1..1....1..0..1..1....1..1..0..0
%e A206893 ..0..0..1..1....0..0..0..0....1..1..1..0....1..1..1..1....1..1..1..1
%K A206893 nonn
%O A206893 1,1
%A A206893 _R. H. Hardin_ Feb 13 2012