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 A074537 a(n) = 2^n + 5^n + 6^n. 1
 3, 13, 65, 349, 1937, 10933, 62345, 358189, 2070497, 12031333, 70232825, 411627229, 2420927057, 14281405333, 84467696105, 500702595469, 2973697863617, 17689599028933, 105374654196185, 628433226862909 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..200 Index entries for linear recurrences with constant coefficients, signature (13,-52,60). FORMULA From Mohammad K. Azarian, Dec 27 2008: (Start) G.f.: 1/(1-2*x) + 1/(1-5*x) + 1/(1-6*x). E.g.f.: exp(2*x) + exp(5*x) + exp(6*x). (End) MATHEMATICA Table[2^n + 5^n + 6^n, {n, 0, 20}] PROG (MAGMA) [2^n + 5^n + 6^n: n in [0..25]]; // Vincenzo Librandi, Jun 11 2011 CROSSREFS Cf. A001550, A001576, A034513, A001579, A074501 - A074580. Sequence in context: A151987 A126149 A060927 * A284714 A200475 A106227 Adjacent sequences:  A074534 A074535 A074536 * A074538 A074539 A074540 KEYWORD easy,nonn AUTHOR Robert G. Wilson v, Aug 23 2002 STATUS approved

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Last modified January 19 20:41 EST 2020. Contains 331066 sequences. (Running on oeis4.)