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A164145 Number of binary strings of length n with equal numbers of 001 and 110 substrings 1
1, 2, 4, 6, 8, 12, 22, 46, 96, 192, 368, 692, 1302, 2482, 4794, 9334, 18208, 35484, 69060, 134400, 261864, 511136, 999404, 1956660, 3834182, 7518146, 14750262, 28957066, 56884098, 111817490, 219934862, 432832198, 852241168, 1678824924, 3308539056 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

R. H. Hardin, Table of n, a(n) for n=0..500

Shalosh B. Ekhad and Doron Zeilberger, Automatic Solution of Richard Stanley's Amer. Math. Monthly Problem #11610 and ANY Problem of That Type, arXiv preprint arXiv:1112.6207, 2011. See subpages for rigorous derivations of g.f., recurrence, asymptotics for this sequence. [From N. J. A. Sloane, Apr 07 2012]

CROSSREFS

Sequence in context: A323114 A118563 A228515 * A140999 A168267 A308912

Adjacent sequences:  A164142 A164143 A164144 * A164146 A164147 A164148

KEYWORD

nonn

AUTHOR

R. H. Hardin Aug 11 2009

STATUS

approved

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Last modified November 11 16:01 EST 2019. Contains 329019 sequences. (Running on oeis4.)