id:A049681 - OEIS Search Results

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a(n)=(L(2n)-L(n))/2, where L=A000032 (the Lucas sequence).

+0
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0, 1, 2, 7, 20, 56, 152, 407, 1080, 2851, 7502, 19702, 51680, 135461, 354902, 929567, 2434320, 6374236, 16689752, 43697227, 114405500, 299525051, 784179002, 2053027082, 5374926720, 14071792681 (list; graph; listen)

	OFFSET	`0,3`
	CROSSREFS	`Adjacent sequences: A049678 A049679 A049680 this_sequence A049682 A049683 A049684` `Sequence in context: A018033 A000149 A080041 this_sequence A027120 A094982 A007460`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`
	EXTENSIONS	`Corrected by Franklin T. Adams-Watters, Oct 25 2006` `Corrected by T. D. Noe (noe(AT)sspectra.com), Nov 01 2006`

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.

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