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A164401 Number of binary strings of length n with no substrings equal to 0010 or 0101 1
14, 25, 45, 81, 146, 264, 477, 861, 1554, 2805, 5063, 9139, 16497, 29779, 53754, 97031, 175150, 316162, 570702, 1030171, 1859556, 3356674, 6059113, 10937270, 19742803, 35637620, 64329263, 116120383, 209608236, 378362622, 682980194, 1232843622 (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,-1,1,0,0,1).

FORMULA

G.f. -x^4*(14-3*x+9*x^2+2*x^3+4*x^4+8*x^5) / ( -1+2*x-x^2+x^3+x^6 ). - R. J. Mathar, Nov 30 2011

CROSSREFS

Sequence in context: A164388 A164403 A164389 * A164398 A174519 A079505

Adjacent sequences:  A164398 A164399 A164400 * A164402 A164403 A164404

KEYWORD

nonn

AUTHOR

R. H. Hardin Aug 14 2009

STATUS

approved

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Last modified March 30 04:57 EDT 2017. Contains 284297 sequences.