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A208168 Number of 7Xn 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 0 vertically.

%I A208168 #7 Jul 22 2025 21:13:16
%S A208168 31,961,6759,46611,258952,1493661,9072707,53874293,315713411,
%T A208168 1874906825,11126711003,65771372274,389369462027,2306918088206,
%U A208168 13657520785513,80855461760683,478802042582831,2835088280044468,16786245481948186
%N A208168 Number of 7Xn 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 0 vertically.
%C A208168 Row 7 of A208164
%H A208168 R. H. Hardin, <a href="/A208168/b208168.txt">Table of n, a(n) for n = 1..210</a>
%e A208168 Some solutions for n=4
%e A208168 ..0..0..1..1....1..0..0..1....1..1..1..0....1..1..1..0....0..1..1..0
%e A208168 ..1..0..0..1....1..1..0..0....1..1..1..1....0..1..1..1....1..0..0..1
%e A208168 ..1..0..0..1....1..1..0..0....0..0..1..1....0..0..1..1....1..1..1..1
%e A208168 ..1..0..0..1....0..1..0..0....0..0..1..0....0..1..1..1....0..1..1..1
%e A208168 ..1..0..0..1....0..1..0..0....0..0..1..1....0..1..1..1....1..0..0..1
%e A208168 ..1..0..0..1....0..1..0..0....0..0..1..1....0..0..1..1....1..1..0..0
%e A208168 ..1..0..0..1....0..1..0..0....0..0..1..1....0..1..1..1....0..1..0..0
%K A208168 nonn
%O A208168 1,1
%A A208168 _R. H. Hardin_ Feb 24 2012