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A164463 Number of binary strings of length n with no substrings equal to 0001 0100 or 0110 1
13, 20, 31, 50, 82, 134, 217, 350, 565, 914, 1480, 2396, 3877, 6272, 10147, 16418, 26566, 42986, 69553, 112538, 182089, 294626, 476716, 771344, 1248061, 2019404, 3267463, 5286866, 8554330, 13841198, 22395529, 36236726, 58632253, 94868978 (list; graph; refs; listen; history; text; internal format)
OFFSET

4,1

LINKS

R. H. Hardin, Table of n, a(n) for n=4..500

Index entries for linear recurrences with constant coefficients, signature (2,-1,0,1).

FORMULA

G.f. -x^4*(13-6*x+4*x^2+8*x^3) / ( (x^2-x+1)*(x^2+x-1) ). - R. J. Mathar, Jan 19 2011

CROSSREFS

Sequence in context: A164502 A164474 A164478 * A164470 A164469 A164462

Adjacent sequences:  A164460 A164461 A164462 * A164464 A164465 A164466

KEYWORD

nonn

AUTHOR

R. H. Hardin Aug 14 2009

STATUS

approved

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Last modified September 23 20:42 EDT 2021. Contains 347617 sequences. (Running on oeis4.)