login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A164483 Number of binary strings of length n with no substrings equal to 0001 0111 or 1010 1
13, 20, 30, 44, 64, 92, 131, 186, 263, 370, 520, 730, 1022, 1430, 2001, 2796, 3905, 5456, 7618, 10632, 14844, 20720, 28911, 40350, 56315, 78574, 109644, 153014, 213498, 297898, 415709, 580048, 809333, 1129356, 1575846, 2198756, 3068088, 4281092 (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,-1,2,-3,0,1).

FORMULA

G.f. -x^4*(13-6*x+3*x^2-22*x^3+5*x^4+8*x^5) / ( (x^4+2*x^3-1)*(x-1)^2 ). - R. J. Mathar, Jan 19 2011

CROSSREFS

Sequence in context: A164476 A164466 A164475 * A164487 A164468 A164489

Adjacent sequences:  A164480 A164481 A164482 * A164484 A164485 A164486

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 | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified May 22 13:18 EDT 2017. Contains 286872 sequences.