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 A154410 a(n) = 5*(3*6^n + 2^n)/2. 1
 10, 50, 280, 1640, 9760, 58400, 350080, 2099840, 12597760, 75584000, 453498880, 2720983040, 16325877760, 97955225600, 587731271680, 3526387466240, 21158324469760, 126949946163200, 761699675668480, 4570198051389440, 27421188303093760 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..1000 Index entries for linear recurrences with constant coefficients, signature (8,-12). FORMULA a(n) = 8*a(n-1) - 12*a(n-2). a(n) = 6*a(n-1) - 10*2^(n-1). a(n) = A154407(n+1) - A154407(n). a(n) = 10*A090040(n). G.f.: 10*(1-3*x)/((1-2*x)*(1-6*x)). - Jaume Oliver Lafont, Aug 30 2009 E.g.f.: (5/2)*( exp(2*x) + 3*exp(6*x) ). - G. C. Greubel, Sep 16 2016 MATHEMATICA LinearRecurrence[{8, -12}, {10, 50}, 30] (* Harvey P. Dale, Apr 27 2018 *) PROG (Magma) [5*(3*6^n+2^n)/2: n in [0..30]]; // Vincenzo Librandi, Aug 07 2011 CROSSREFS Sequence in context: A095687 A204272 A220149 * A060156 A000450 A124872 Adjacent sequences: A154407 A154408 A154409 * A154411 A154412 A154413 KEYWORD nonn,easy AUTHOR Paul Curtz, Jan 09 2009 EXTENSIONS Entries corrected and extended by Paolo P. Lava, Jan 20 2009 Comments turned into formulas by R. J. Mathar, Sep 07 2009 STATUS approved

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Last modified December 2 10:22 EST 2022. Contains 358493 sequences. (Running on oeis4.)