id:A081866 - OEIS Search Results

Search: id:A081866

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a(n)=sigma_9(2n-1).

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1, 19684, 1953126, 40353608, 387440173, 2357947692, 10604499374, 38445332184, 118587876498, 322687697780, 794320419872, 1801152661464, 3814699218751, 7625984925160, 14507145975870, 26439622160672, 46413842369328 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A013957.` `Sequence in context: A017313 A017433 A017565 this_sequence A090072 A035926 A109479` `Adjacent sequences: A081863 A081864 A081865 this_sequence A081867 A081868 A081869`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 12 2003`

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Last modified September 8 08:06 EDT 2008. Contains 143486 sequences.

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