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A164497 Number of binary strings of length n with no substrings equal to 0010 0110 or 1011 1

%I #10 Jun 13 2015 00:53:15

%S 13,21,34,54,87,140,227,368,597,967,1565,2531,4093,6620,10710,17330,

%T 28044,45381,73432,118816,192244,311049,503279,814318,1317598,2131931,

%U 3449554,5581509,9031072,14612565,23643597,38256113,61899677,100155797

%N Number of binary strings of length n with no substrings equal to 0010 0110 or 1011

%H R. H. Hardin, <a href="/A164497/b164497.txt">Table of n, a(n) for n=4..500</a>

%H <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (2,0,-2,1,1).

%F G.f. -x^4*(13-5*x-8*x^2+12*x^3+8*x^4) / ( (x^2+x-1)*(x^3-x+1) ). - R. J. Mathar, Jan 19 2011

%K nonn

%O 4,1

%A _R. H. Hardin_ Aug 14 2009

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Last modified September 21 07:12 EDT 2023. Contains 365494 sequences. (Running on oeis4.)