id:A123890 - OEIS Search Results

Search: id:A123890

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G.f.: x/((1-x^2)^5-1+x).

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1, 5, 25, 115, 525, 2385, 10825, 49120, 222875, 1011251, 4588335, 20818575, 94459755, 428590575, 1944636420, 8823364350, 40034094615, 181645987625, 824179118751, 3739533301365, 16967318139775, 76985511735170, 349304997307275, 1584895370489480 (list; graph; listen)

	OFFSET	`0,2`
	REFERENCES	`A. Burstein and T. Mansour, Words restricted by 3-letter ..., Annals. Combin., 7 (2003), 1-14.`
	LINKS	`A. Burstein and T. Mansour, Words restricted by 3-letter ....`
	CROSSREFS	`Adjacent sequences: A123887 A123888 A123889 this_sequence A123891 A123892 A123893` `Sequence in context: A092440 A124534 A089947 this_sequence A123894 A055297 A034274`
	KEYWORD	`nonn`
	AUTHOR	`njas, Nov 20 2006`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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