A164827 - OEIS

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A164827

Generalized Lucas numbers: a(n) = a(n-1) + 10 a(n-2); with a(1)=2 a(2)=1

2, 1, 21, 31, 241, 551, 2961, 8471, 38081, 122791, 503601, 1731511, 6767521, 24082631, 91757841, 332584151, 1250162561, 4576004071, 17077629681, 62837670391, 233613967201, 861990671111, 3198130343121, 11818037054231 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	FORMULA	`a(n)=[(1/2)-(1/2)sqrt(41)]^(n-1)+[(1/2)+(1/2)sqrt(41)]^(n-1), with n>=1 [From Paolo P. Lava (paoloplava(AT)gmail.com), Dec 03 2009]`
	CROSSREFS	`A000032, A015446` `Sequence in context: A191719 A009768 A051492 * A200859 A127607 A059360` `Adjacent sequences: A164824 A164825 A164826 * A164828 A164829 A164830`
	KEYWORD	`nonn`
	AUTHOR	`M. Dols (markdols99(AT)yahoo.com), Aug 27 2009`
	EXTENSIONS	`More terms from Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Apr 23 2010`

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Last modified February 14 11:36 EST 2012. Contains 205623 sequences.