id:A102359 - OEIS Search Results

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Sigma((4^n - 1)/3), where sigma(n) is the sum of positive divisors of n.

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1, 6, 32, 108, 384, 2688, 5632, 27864, 153920, 499968, 1477440, 11708928, 22380544, 115568640, 620101632, 1826150832, 5726797824, 54044390400, 91626668032, 555102471168, 2352412508160, 7458459886080, 23955459951744 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A002450.` `Sequence in context: A121002 A161844 A090382 this_sequence A000397 A130410 A027217` `Adjacent sequences: A102356 A102357 A102358 this_sequence A102360 A102361 A102362`
	KEYWORD	`nonn`
	AUTHOR	`Jun Mizuki (suzuki32(AT)sanken.osaka-u.ac.jp), Feb 22 2005`

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.

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