A077972 - OEIS

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A077972

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

1, -1, 2, -5, 9, -18, 37, -73, 146, -293, 585, -1170, 2341, -4681, 9362, -18725, 37449, -74898, 149797, -299593, 599186, -1198373, 2396745, -4793490, 9586981, -19173961, 38347922, -76695845, 153391689, -306783378, 613566757, -1227133513, 2454267026, -4908534053, 9817068105 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	CROSSREFS	`Apart from signs, same as A077947.` `Sequence in context: A097281 A068036 A077947 * A152546 A085410 A073118` `Adjacent sequences: A077969 A077970 A077971 * A077973 A077974 A077975`
	KEYWORD	`sign`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Nov 17 2002`

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.