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A164501 Number of binary strings of length n with no substrings equal to 0010 1001 or 1100 1

%I

%S 13,22,37,62,105,177,300,508,861,1459,2472,4188,7094,12016,20352,

%T 34471,58385,98890,167497,283703,480532,813919,1378606,2335065,

%U 3955101,6699093,11346824,19219079,32552984,55137750,93391486,158185089,267931521

%N Number of binary strings of length n with no substrings equal to 0010 1001 or 1100

%H R. H. Hardin, <a href="/A164501/b164501.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,-1,0,0,0,1).

%F G.f. -x^4*(13-4*x-7*x^2+x^3+3*x^4+4*x^5+8*x^6) / ( -1+2*x-x^3+x^7 ). - 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 16 11:12 EDT 2021. Contains 347472 sequences. (Running on oeis4.)