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A207523 Number of 7Xn 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically.

%I A207523 #7 Jul 22 2025 20:32:48
%S A207523 42,1764,12994,101233,991184,7666319,54373655,406281454,2956097240,
%T A207523 20771578816,146736632823,1035899791894,7243867291833,50585923578789,
%U A207523 353460807485988,2464610891088612,17167716757793554,119597858516828559
%N A207523 Number of 7Xn 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically.
%C A207523 Row 7 of A207519
%H A207523 R. H. Hardin, <a href="/A207523/b207523.txt">Table of n, a(n) for n = 1..210</a>
%e A207523 Some solutions for n=4
%e A207523 ..0..1..1..1....0..1..1..1....1..0..1..1....1..0..1..1....1..1..0..1
%e A207523 ..0..0..0..0....1..1..1..1....0..0..0..0....1..1..0..0....1..1..1..0
%e A207523 ..0..0..0..0....1..1..1..1....0..0..0..0....1..1..0..0....0..1..1..0
%e A207523 ..1..1..1..1....1..1..1..1....0..0..0..0....1..0..1..1....0..1..1..0
%e A207523 ..1..1..1..1....1..1..1..1....0..1..1..0....1..0..1..1....0..1..1..1
%e A207523 ..0..1..1..1....0..1..1..1....1..1..1..0....1..1..1..0....1..1..0..1
%e A207523 ..0..1..1..1....0..1..1..0....1..1..0..0....0..1..1..0....1..1..0..1
%K A207523 nonn
%O A207523 1,1
%A A207523 _R. H. Hardin_ Feb 18 2012