A026115 - OEIS

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A026115

a(n) = T(2n,n-1), where T is the array defined in A026105.

1, 3, 15, 77, 413, 2266, 12636, 71290, 405790, 2325923, 13406666, 77632590, 451270925, 2631763500, 15391191315, 90230338449, 530098757210, 3120158068370, 18395925762046, 108621483748778 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A037766 A037654 A074561 * A027911 A104530 A031884` `Adjacent sequences: A026112 A026113 A026114 * A026116 A026117 A026118`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified February 17 17:35 EST 2012. Contains 206061 sequences.