id:A162551 - OEIS Search Results

Search: id:A162551

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2 * C(2n,n-1).

+0
2

0, 2, 8, 30, 112, 420, 1584, 6006, 22880, 87516, 335920, 1293292, 4992288, 19315400, 74884320, 290845350, 1131445440, 4407922860, 17194993200, 67156001220, 262564816800, 1027583214840, 4025232800160, 15780742227900, 61915399071552 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Total length of all Dyck paths of length 2n.`
	FORMULA	`a(n)=2*A001791(n). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 15 2009]`
	CROSSREFS	`Cf. A162549.` `Sequence in context: A127865 A077839 A052530 this_sequence A073663 A155116 A133915` `Adjacent sequences: A162548 A162549 A162550 this_sequence A162552 A162553 A162554`
	KEYWORD	`nonn`
	AUTHOR	`Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Jul 05 2009`

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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.

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