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%I #3 Mar 31 2012 12:35:49
%S 64,2258,85126,3185462,119310334,4468252414,167341334542,
%T 6267120468434,234710735573170,8790181730741270,329202219837957230,
%U 12328994417789802954,461734746019197769254,17292486998904958867138
%N Number of nX6 binary matrices with no 2X2 circuit having pattern 0101 in any orientation
%C Column 6 of A181245
%H R. H. Hardin, <a href="/A181241/b181241.txt">Table of n, a(n) for n=1..200</a>
%F Empirical: a(n)=36*a(n-1)+120*a(n-2)-2391*a(n-3)-3905*a(n-4)+50702*a(n-5)+27152*a(n-6)-396016*a(n-7)+154999*a(n-8)+751787*a(n-9)-499260*a(n-10)-410368*a(n-11)+355981*a(n-12)+38077*a(n-13)-70276*a(n-14)+6203*a(n-15)+3386*a(n-16)-622*a(n-17)+28*a(n-18)
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 10 2010
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