id:A115619 - OEIS Search Results

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Sigma(A033631(n)) {sigma is the sum of divisors function A000203}.

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1, 120, 546, 1680, 2880, 7812, 14520 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..1000`
	CROSSREFS	`Sequence in context: A052778 A033697 A067915 this_sequence A100145 A090216 A113546` `Adjacent sequences: A115616 A115617 A115618 this_sequence A115620 A115621 A115622`
	KEYWORD	`nonn`
	AUTHOR	`Lekraj Beedassy (blekraj(AT)yahoo.com), Jan 26 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.