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A164404 Number of binary strings of length n with no substrings equal to 0010 or 1011 1
14, 24, 41, 70, 120, 206, 354, 608, 1044, 1792, 3076, 5280, 9064, 15560, 26712, 45856, 78720, 135136, 231984, 398240, 683648, 1173600, 2014688, 3458560, 5937216, 10192256, 17496768, 30036224, 51562368, 88515712, 151952512, 260852736 (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. -x^4*(14-4*x-7*x^2+16*x^3) / ( -1+2*x-2*x^3+2*x^4 ). - R. J. Mathar, Nov 30 2011

CROSSREFS

Sequence in context: A164397 A164399 A164396 * A164400 A164405 A164395

Adjacent sequences:  A164401 A164402 A164403 * A164405 A164406 A164407

KEYWORD

nonn

AUTHOR

R. H. Hardin Aug 14 2009

STATUS

approved

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Last modified May 23 08:55 EDT 2017. Contains 286909 sequences.