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A208372 Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 0 vertically.

%I A208372 #7 Jul 22 2025 21:18:25
%S A208372 21,441,3633,41433,422541,4503765,47178453,497691495,5235328875,
%T A208372 55135304931,580377874461,6110484281013,64328902346583,
%U A208372 677252632373457,7129999455655041,75063819603876579,790261545306328809
%N A208372 Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 0 vertically.
%C A208372 Row 6 of A208369
%H A208372 R. H. Hardin, <a href="/A208372/b208372.txt">Table of n, a(n) for n = 1..210</a>
%F A208372 Empirical: a(n) = 86*a(n-2) +334*a(n-3) -459*a(n-4) -3348*a(n-5) +249*a(n-6) +13148*a(n-7) +1379*a(n-8) -25508*a(n-9) +377*a(n-10) +23840*a(n-11) -4337*a(n-12) -8632*a(n-13) +1927*a(n-14) +1170*a(n-15) -195*a(n-16) -50*a(n-17)
%e A208372 Some solutions for n=4
%e A208372 ..0..1..1..1....1..0..1..1....1..1..1..1....0..1..1..0....1..1..0..0
%e A208372 ..1..1..0..0....0..1..1..1....0..1..1..1....1..1..0..1....0..1..0..0
%e A208372 ..1..1..1..1....1..1..0..0....1..0..1..1....1..0..1..1....1..1..0..0
%e A208372 ..0..1..1..1....1..1..0..1....1..0..1..0....0..1..1..0....1..1..0..0
%e A208372 ..1..0..1..0....0..1..0..1....1..0..1..0....1..1..1..0....1..1..0..0
%e A208372 ..1..1..1..1....1..1..0..0....1..0..1..0....1..1..0..0....1..1..0..0
%K A208372 nonn
%O A208372 1,1
%A A208372 _R. H. Hardin_ Feb 25 2012