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A164477 Number of binary strings of length n with no substrings equal to 0001 0110 or 1000 2
13, 21, 35, 59, 100, 170, 289, 492, 838, 1428, 2434, 4149, 7073, 12058, 20557, 35047, 59751, 101869, 173676, 296100, 504821, 860670, 1467358, 2501702, 4265158, 7271679, 12397505, 21136540, 36035745, 61437441, 104744863, 178579807 (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 (2,0,-1,0,1,-1).

FORMULA

G.f. -x^4*(-13+5*x+7*x^2-2*x^3-3*x^4+8*x^5) / ( (x-1)*(x^5+x^2+x-1) ). - R. J. Mathar, Jan 19 2011

CROSSREFS

Sequence in context: A164453 A164465 A164471 * A164423 A164422 A164500

Adjacent sequences:  A164474 A164475 A164476 * A164478 A164479 A164480

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.)