login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A164492 Number of binary strings of length n with no substrings equal to 0010 0101 or 0110 1
13, 21, 34, 56, 93, 155, 259, 432, 719, 1195, 1986, 3302, 5492, 9136, 15198, 25281, 42051, 69943, 116335, 193500, 321852, 535345, 890454, 1481114, 2463569, 4097704, 6815793, 11336848, 18856817, 31364944, 52169978, 86775429, 144335401 (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,-1,0,1,0,0,1).

FORMULA

G.f. -x^4*(13-5*x+5*x^2+9*x^3+2*x^4+4*x^5+8*x^6) / ( -1+2*x-x^2+x^4+x^7 ). - R. J. Mathar, Jan 19 2011

CROSSREFS

Sequence in context: A067516 A164449 A164439 * A164451 A164432 A034292

Adjacent sequences: A164489 A164490 A164491 * A164493 A164494 A164495

KEYWORD

nonn

AUTHOR

R. H. Hardin Aug 14 2009

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 4 13:45 EST 2022. Contains 358558 sequences. (Running on oeis4.)