id:A123335 - OEIS Search Results

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a(0)=1, a(1)=-1, a(n)=-2*a(n-1)+a(n-2)for n>1 .

+0
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1, -1, 3, -7, 17, -41, 99, -239, 577, -1393, 3363, -8119, 19601, -47321, 114243, -275807, 665857, -1607521, 3880899, -9369319, 22619537, -54608393, 131836323, -318281039, 768398401, -1855077841, 447855083, -10812186007, 26102926097, -63018038201 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`Inverse binomial transform of A077957 .`
	FORMULA	`a(n)=(-1)^nA001333(n). G.f.:(1+x)/(1+2x-x^2).`
	CROSSREFS	`Sequence in context: A131056 A077851 A089737 this_sequence A001333 A078057 A089742` `Adjacent sequences: A123332 A123333 A123334 this_sequence A123336 A123337 A123338`
	KEYWORD	`easy,sign`
	AUTHOR	`Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Jun 27 2007`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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