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 A121200 2n+7^n+5^n. 1
 2, 14, 78, 474, 3034, 19942, 133286, 901682, 6155442, 42306750, 292240894, 2026154890, 14085427850, 98109713558, 684326588502, 4778079088098, 33385518460258, 233393453440366, 1632228295176110, 11417968671701306 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..1000 FORMULA G.f.: 2*(1-7*x+x^2+29*x^3)/((1-x)^2*(1-5*x)*(1-7*x)). - Vincenzo Librandi, Feb 25 2013 MATHEMATICA Table[2 n + 7^n + 5^n, {n, 0, 20}]  (* Harvey P. Dale, Mar 30 2011 *) CoefficientList[Series[2 (1 - 7 x + x^2 + 29 x^3)/((1 - x)^2 (1 - 5 x)(1 - 7 x)), {x, 0, 30}], x] (* Vincenzo Librandi, Feb 25 2013 PROG (MAGMA) [2*n+7^n+5^n: n in [0..30]]; // Vincenzo Librandi, Feb 25 2013 CROSSREFS Cf. A074616. Sequence in context: A278417 A133224 A183577 * A112408 A026291 A220867 Adjacent sequences:  A121197 A121198 A121199 * A121201 A121202 A121203 KEYWORD nonn,easy AUTHOR Mohammad K. Azarian, Aug 19 2006 EXTENSIONS Edited by Ray Chandler, Sep 06 2006 STATUS approved

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Last modified January 20 16:38 EST 2019. Contains 319335 sequences. (Running on oeis4.)