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 A190872 a(n) = 11*a(n-1) - 9*a(n-2), a(0)=0, a(1)=1 2
 0, 1, 11, 112, 1133, 11455, 115808, 1170793, 11836451, 119663824, 1209774005, 12230539639, 123647969984, 1250052813073, 12637749213947, 127764766035760, 1291672683467837, 13058516623824367, 132018628710857504, 1334678266205013241, 13493293269857428115 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS FORMULA a(n) = ((11+sqrt(85))^n-(11-sqrt(85))^n)/(2^n*sqrt(85)). G.f.: x/(1-11*x+9*x^2). - Philippe DelĂ©ham, Feb 12 2012 MATHEMATICA LinearRecurrence[{11, -9}, {0, 1}, 50] (* T. D. Noe, May 23 2011 *) CROSSREFS Sequence in context: A059996 A132938 A056618 * A024145 A053055 A024148 Adjacent sequences:  A190869 A190870 A190871 * A190873 A190874 A190875 KEYWORD nonn AUTHOR Rolf Pleisch, May 22 2011 EXTENSIONS Extended by T. D. Noe, May 23 2011 STATUS approved

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