id:A165747 - OEIS Search Results

Search: id:A165747

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a(n)=1-2n.

+0
2

1, -1, -3, -5, -7, -9, -11, -13, -15, -17, -19, -21, -23, -25, -27, -29, -31, -33, -35, -37, -39, -41, -43, -45, -47, -49, -51, -53, -55, -57, -59, -61, -63, -65, -67, -69, -71, -73, -75, -77, -79, -81, -83, -85, -87, -89, -91, -93, -95, -97, -99, -101, -103 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(n)= -A060747(n). a(n)= 2a(n-1)-a(n-2), a(0)= 1, a(1)= -1. G.f.: (1-3x)/(1-x)^2. a(n)= Sum_{k, 0<=k<=n} A112555(n,k)(-2)^(n-k).`
	CROSSREFS	`Cf. A060747` `Sequence in context: A059533 A064679 A081874 this_sequence A053229 A157142 A004273` `Adjacent sequences: A165744 A165745 A165746 this_sequence A165748 A165749 A165750`
	KEYWORD	`easy,sign`
	AUTHOR	`Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Sep 26 2009`

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Last modified November 25 13:47 EST 2009. Contains 167481 sequences.

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