A077983 - OEIS

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A077983

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

1, -2, 6, -17, 48, -136, 385, -1090, 3086, -8737, 24736, -70032, 198273, -561346, 1589270, -4499505, 12738896, -36066072, 102109441, -289089922, 818464798, -2317218881, 6560457280, -18573817120, 52585767681, -148879626882, 421504606246, -1193354233937, 3378597307248 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A018915 A019487 A077936 * A036365 A052536 A122100` `Adjacent sequences: A077980 A077981 A077982 * A077984 A077985 A077986`
	KEYWORD	`sign`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Nov 17 2002`

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Last modified February 16 16:51 EST 2012. Contains 205938 sequences.