id:A087787 - OEIS Search Results

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Sum_{k=0..n} (-1)^(n-k)*A000041(k).

+0
3

1, 0, 2, 1, 4, 3, 8, 7, 15, 15, 27, 29, 48, 53, 82, 94, 137, 160, 225, 265, 362, 430, 572, 683, 892, 1066, 1370, 1640, 2078, 2487, 3117, 3725, 4624, 5519, 6791, 8092, 9885, 11752, 14263, 16922, 20416, 24167, 29007, 34254, 40921, 48213, 57345, 67409 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`G.f.: 1/(1+x)1/Product_{k>0} (1-x^k). a(n) = 1/nSum_{k=1..n} (sigma(k)+(-1)^k)*a(n-k).`
	CROSSREFS	`Sequence in context: A008347 A112387 A076077 this_sequence A100818 A005291 A106624` `Adjacent sequences: A087784 A087785 A087786 this_sequence A087788 A087789 A087790`
	KEYWORD	`nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)Eunet.yu), Oct 07 2003`

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.

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