A003063 - OEIS

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A003063

3^(n-1)-2^n.

-1, -1, 1, 11, 49, 179, 601, 1931, 6049, 18659, 57001, 173051, 523249, 1577939, 4750201, 14283371, 42915649, 128878019, 386896201, 1161212891, 3484687249, 10456158899, 31372671001, 94126401611 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,4`
	FORMULA	`Let b(n)=2(3/2)^n-1. Then a(n)=-b(1-n)3^(n-1) for n>0. A083313(n)=A064686(n)=b(n)*2^(n-1) for n>0. - Michael Somos Aug 06 2006`
	CROSSREFS	`Sequence in context: A008780 A101992 A160671 * A124857 A126398 A159486` `Adjacent sequences: A003060 A003061 A003062 * A003064 A003065 A003066`
	KEYWORD	`sign`
	AUTHOR	`Henrik Johansson (Henrik.Johansson(AT)Nexus.SE)`

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.