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 A013787 a(n) = 7^(4*n + 3). 2
 343, 823543, 1977326743, 4747561509943, 11398895185373143, 27368747340080916343, 65712362363534280139543, 157775382034845806615042743, 378818692265664781682717625943, 909543680129861140820205019889143, 2183814375991796599109312252753832343 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..200 Tanya Khovanova, Recursive Sequences Index entries for linear recurrences with constant coefficients, signature (2401). FORMULA From Philippe Deléham, Dec 02 2008: (Start) a(n) = 2401*a(n-1); a(0)=343. G.f.: 343/(1-2401*x). a(n) = 49*A013786(n). (End) MATHEMATICA 7^(4*Range[0, 10]+3) (* or *) NestList[2401#&, 343, 10] (* Harvey P. Dale, Sep 09 2021 *) PROG (Magma) [7^(4*n+3): n in [0..15]]; // Vincenzo Librandi, Jun 28 2011 (Maxima) makelist(7^(4*n+3), n, 0, 20); /* Martin Ettl, Oct 21 2012 */ (PARI) a(n)=7^(4*n+3) \\ Charles R Greathouse IV, Jul 11 2016 CROSSREFS Sequence in context: A046236 A294663 A222460 * A013844 A013306 A044878 Adjacent sequences: A013784 A013785 A013786 * A013788 A013789 A013790 KEYWORD nonn,easy AUTHOR N. J. A. Sloane STATUS approved

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Last modified May 19 14:45 EDT 2024. Contains 372698 sequences. (Running on oeis4.)