login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A164496 Number of binary strings of length n with no substrings equal to 0010 0110 or 1001 1

%I

%S 13,21,35,58,96,159,264,438,727,1206,2001,3319,5506,9133,15151,25133,

%T 41694,69165,114739,190338,315752,523795,868921,1441440,2391195,

%U 3966724,6580367,10916098,18108619,30040197,49833403,82668121,137137355

%N Number of binary strings of length n with no substrings equal to 0010 0110 or 1001

%H R. H. Hardin, <a href="/A164496/b164496.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,-2,2,-1,1)

%F G.f. -x^4*(13-5*x-7*x^2+14*x^3-4*x^4+8*x^5) / ( -1+2*x-2*x^3+2*x^4-x^5+x^6 ). - R. J. Mathar, Jan 19 2011

%K nonn

%O 4,1

%A _R. H. Hardin_ Aug 14 2009

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 15 18:54 EDT 2021. Contains 348034 sequences. (Running on oeis4.)