A053536 - OEIS

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A053536

A second order recursive sequence.

1, 8, 112, 1280, 15616, 186368, 2240512, 26869760, 322502656, 3869769728, 46438285312, 557255229440 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	REFERENCES	`A. H. Beiler, Recreations in the Theory of Numbers, Dover, N.Y., 1964, pp. 194-196.`
	FORMULA	`a(n)=(4^n/4)*[(3^(n+1))+(-1)^n].`
	EXAMPLE	`a(n)=8a(n-1)+48a(n-2); a(0)=1.`
	CROSSREFS	`Cf. A015518.` `Sequence in context: A131621 A003721 A075851 * A139741 A067900 A067414` `Adjacent sequences: A053533 A053534 A053535 * A053537 A053538 A053539`
	KEYWORD	`easy,nonn`
	AUTHOR	`Barry E. Williams, Jan 15 2000`

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Last modified February 13 20:26 EST 2012. Contains 205553 sequences.