A022312 - OEIS

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A022312

a(n)=a(n-1)+a(n-2)+1.

0, 7, 8, 16, 25, 42, 68, 111, 180, 292, 473, 766, 1240, 2007, 3248, 5256, 8505, 13762, 22268, 36031, 58300, 94332, 152633, 246966, 399600, 646567, 1046168, 1692736, 2738905, 4431642, 7170548, 11602191 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	LINKS	`Index to sequences with linear recurrences with constant coefficients, signature (2,0,-1)`
	FORMULA	`G.f. -x(-7+6x) / ( (x-1)*(x^2+x-1) ). - R. J. Mathar, Apr 07 2011`
	CROSSREFS	`Equals A022098(n) - 1.` `Sequence in context: A099534 A127933 A006878 * A055661 A054312 A106678` `Adjacent sequences: A022309 A022310 A022311 * A022313 A022314 A022315`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 15 23:34 EST 2012. Contains 205860 sequences.