A027562 - OEIS

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A027562

Number of 5-unbalanced strings of length n (=2^n-A027560[ n ]).

0, 0, 0, 0, 0, 0, 2, 6, 24, 62, 178, 426, 1070, 2444, 5720, 12662, 28392, 61464, 133980, 285304, 609750, 1282278, 2701396, 5626046, 11725614, 24234418, 50093914, 102905764, 211350724, 432051438, 882876204, 1797686520 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,7`
	FORMULA	`G.f.: 2x^6/[(1-2x)(1-3x^2)(1-x-2x^2+x^3)].`
	CROSSREFS	`Sequence in context: A189566 A178009 A107762 * A096259 A087645 A174700` `Adjacent sequences: A027559 A027560 A027561 * A027563 A027564 A027565`
	KEYWORD	`nonn`
	AUTHOR	`R. K. Guy (rkg(AT)cpsc.ucalgary.ca), callan(AT)bayes.stat.wisc.edu (David Callan)`

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Last modified February 15 12:04 EST 2012. Contains 205782 sequences.