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 A199312 (9*5^n+1)/2. 1
 5, 23, 113, 563, 2813, 14063, 70313, 351563, 1757813, 8789063, 43945313, 219726563, 1098632813, 5493164063, 27465820313, 137329101563, 686645507813, 3433227539063, 17166137695313, 85830688476563, 429153442382813, 2145767211914063 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..1000 Index to sequences with linear recurrences with constant coefficients, signature (6,-5). FORMULA a(n) = 5*a(n-1)-2. a(n) = 6*a(n-1)-5*a(n-2). G.f.: (5-7*x)/((1-x)*(1-5*x)). PROG (MAGMA) [(9*5^n+1)/2: n in [0..30]]; CROSSREFS Sequence in context: A017975 A186652 A178873 * A113284 A104090 A073596 Adjacent sequences:  A199309 A199310 A199311 * A199313 A199314 A199315 KEYWORD nonn,easy AUTHOR Vincenzo Librandi, Nov 05 2011 STATUS approved

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