A091003 - OEIS

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A091003

Expansion of (1-3x^2)/((1-2x)(1+3x)).

1, -1, 4, -10, 34, -94, 298, -862, 2650, -7822, 23722, -70654, 212986, -636910, 1914826, -5736286, 17225242, -51642958, 154994410, -464852158, 1394818618, -4183931566, 12552843274, -37656432670, 112973492314, -338912088334, 1016753042218 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	COMMENTS	`2^n=A091003(n)+3A091004(n)+6A091005(n). Inverse binomial transform of A091000.`
	FORMULA	`a(n)=2^n/10+2(-3)^n/5+0^n/2`
	CROSSREFS	`Sequence in context: A066454 A022445 * A140725 A005630 A100507 A156700` `Adjacent sequences: A091000 A091001 A091002 * A091004 A091005 A091006`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Dec 13 2003`

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Last modified February 17 10:05 EST 2012. Contains 206009 sequences.