id:A137429 - OEIS Search Results

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a(n)=-a(n-1)+2a(n-3).

+0
2

1, -4, 6, -4, -4, 16, -24, 16, 16, -64, 96, -64, -64, 256, -384, 256, 256 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`For n>=4, a(n)=-4a(n-4).`
	CROSSREFS	`Sequence in context: A128633 A001482 A078385 this_sequence A137444 A132024 A092039` `Adjacent sequences: A137426 A137427 A137428 this_sequence A137430 A137431 A137432`
	KEYWORD	`sign`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Apr 17 2008`

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.