id:A103968 - OEIS Search Results

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Sigma((8^n - 1)/7), where sigma(n) is the sum of positive divisors of n.

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1, 13, 74, 1092, 4864, 59200, 346112, 4756752, 19436692, 251916288, 1294876800, 20786304000, 79541043200, 1073030266880, 5303003316224, 81061789640832, 324992122224640, 4102172934143680, 20588576135708672, 376372958524932096 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A023001.` `Sequence in context: A159832 A139070 A094421 this_sequence A073544 A051361 A114070` `Adjacent sequences: A103965 A103966 A103967 this_sequence A103969 A103970 A103971`
	KEYWORD	`nonn`
	AUTHOR	`Jun Mizuki (suzuki32(AT)sanken.osaka-u.ac.jp), Mar 31 2005`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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