A002980 - OEIS

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A002980

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

1, 0, 1, 1, -1, 3, 24, 4, 121, 5, -480, 6, -4201, 7, 48384, 8, 478801, 9, -4968960, 10, -62871601, 11, 885586944, 12, 12996863881, 13, -203910819840, 14, -3476839930201, 15, 63397697224704, 16, 1221998040867361 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,6`
	CROSSREFS	`Sequence in context: A204578 A120085 A062834 * A047980 A084702 A168061` `Adjacent sequences: A002977 A002978 A002979 * A002981 A002982 A002983`
	KEYWORD	`sign`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 15 10:52 EST 2012. Contains 205763 sequences.