id:A023882 - OEIS Search Results

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G.f.: 1/Product_{n>0} (1-n^n*x^n).

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1, 1, 5, 32, 304, 3537, 52010, 895397, 18016416, 410889848, 10523505770, 298220329546, 9274349837081, 313761671751672, 11474635626789410, 450964042480390679, 18954785687060988578, 848386888530723146912 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`Log of g.f.: sum_{k=1}^{\infty} {sigma(k, k+1) / k} x^k }, where sigma(k, q) is the sum of the q-th powers of the divisors of k.`
	CROSSREFS	`Sequence in context: A001923 A023880 A104031 this_sequence A109780 A093448 A094653` `Adjacent sequences: A023879 A023880 A023881 this_sequence A023883 A023884 A023885`
	KEYWORD	`nonn`
	AUTHOR	`Olivier Gerard (olivier.gerard(AT)gmail.com)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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