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A164156 Number of binary strings of length n with equal numbers of 0001 and 0011 substrings 1
1, 2, 4, 8, 14, 26, 48, 88, 166, 312, 590, 1124, 2140, 4092, 7844, 15060, 28998, 55940, 108124, 209408, 406218, 789272, 1535792, 2992312, 5837488, 11400876, 22289812, 43621496, 85444828, 167507880, 328642084, 645245632, 1267710158, 2492228804 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
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: A273154 A135491 A164154 * A257934 A258000 A164155
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 11 2009
STATUS
approved

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Last modified March 28 07:48 EDT 2024. Contains 371235 sequences. (Running on oeis4.)