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

 

Logo

"Email this user" was broken Aug 14 to 9am Aug 16. If you sent someone a message in this period, please send it again.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A164402 Number of binary strings of length n with no substrings equal to 0010 or 0110 1
14, 24, 40, 68, 116, 200, 344, 592, 1016, 1744, 2992, 5136, 8816, 15136, 25984, 44608, 76576, 131456, 225664, 387392, 665024, 1141632, 1959808, 3364352, 5775488, 9914624, 17020160, 29218048, 50157824, 86104576, 147813376, 253747200 (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,-2,2)

FORMULA

G.f. -2*x^4*(7-2*x-4*x^2+8*x^3) / ( -1+2*x-2*x^3+2*x^4 ). - R. J. Mathar, Nov 30 2011

CROSSREFS

Sequence in context: A171124 A046290 A111743 * A164406 A164397 A164399

Adjacent sequences:  A164399 A164400 A164401 * A164403 A164404 A164405

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 August 18 23:54 EDT 2017. Contains 290782 sequences.