id:A069015 - OEIS Search Results

Search: id:A069015

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a(n)=n!*3^n*sum(i=1,n,1/i/3^i).

+0
2

1, 7, 65, 786, 11814, 212772, 4468932, 107259408, 2896044336, 86881692960, 2867099496480, 103215621790080, 4025409728814720, 169067214837239040, 7608024754854048000, 365185189540668672000, 18624444687496892160000 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`E.g.f.: -ln(1-x)/(1-3*x). - Vladeta Jovovic (vladeta(AT)Eunet.yu), Feb 07 2003`
	CROSSREFS	`Cf. A000254, A068102.` `Adjacent sequences: A069012 A069013 A069014 this_sequence A069016 A069017 A069018` `Sequence in context: A099342 A051550 A085283 this_sequence A097819 A109779 A065097`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 14 2002`

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Last modified October 12 13:44 EDT 2008. Contains 144830 sequences.

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