A158749 - OEIS

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A158749

n*9^n.

0, 9, 162, 2187, 26244, 295245, 3188646, 33480783, 344373768, 3486784401, 34867844010, 345191655699, 3389154437772, 33044255768277, 320275094369454, 3088366981419735, 29648323021629456, 283512088894331673 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	FORMULA	`a(n) =n9^n.` `a(n)=18a(n-1)-81a(n-2) = A038299(n,1). G.f.: 9x/(1-9x)^2. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Mar 26 2009]` `a(n) = A001019(n)n. [From Omar E. Pol (info(AT)polprimos.com), Mar 26 2009]`
	MAPLE	`with(finance):seq(futurevalue(n, 8 , n), n=0..18); #`
	CROSSREFS	`A036289 A036290 A018215 A036291 A036292 A036293 A036294 A126431` `Cf. A001019. [From Omar E. Pol (info(AT)polprimos.com), Mar 26 2009]` `Sequence in context: A159831 A133793 A084874 * A133681 A157553 A202438` `Adjacent sequences: A158746 A158747 A158748 * A158750 A158751 A158752`
	KEYWORD	`nonn`
	AUTHOR	`Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 25 2009`

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Last modified February 16 10:53 EST 2012. Contains 205904 sequences.