id:A083581 - OEIS Search Results

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8/3-5(-2)^n/3.

+0
3

1, 6, -4, 16, -24, 56, -104, 216, -424, 856, -1704, 3416, -6824, 13656, -27304, 54616, -109224, 218456, -436904, 873816, -1747624, 3495256, -6990504, 13981016, -27962024, 55924056, -111848104, 223696216, -447392424, 894784856, -1789569704, 3579139416, -7158278824 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=(8-5(-2)^n)/3 G.f. (1+7x)/((1-x)(1+2x)) E.g.f. (8exp(x)-5exp(-2x))/3`
	CROSSREFS	`Cf. A083582.` `Sequence in context: A006582 A131828 A096038 this_sequence A160248 A107983 A009278` `Adjacent sequences: A083578 A083579 A083580 this_sequence A083582 A083583 A083584`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), May 01 2003`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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