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 A074537 a(n) = 2^n + 5^n + 6^n. 1

%I

%S 3,13,65,349,1937,10933,62345,358189,2070497,12031333,70232825,

%T 411627229,2420927057,14281405333,84467696105,500702595469,

%U 2973697863617,17689599028933,105374654196185,628433226862909

%N a(n) = 2^n + 5^n + 6^n.

%H Vincenzo Librandi, <a href="/A074537/b074537.txt">Table of n, a(n) for n = 0..200</a>

%H <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (13,-52,60).

%F From _Mohammad K. Azarian_, Dec 27 2008: (Start)

%F G.f.: 1/(1-2*x) + 1/(1-5*x) + 1/(1-6*x).

%F E.g.f.: exp(2*x) + exp(5*x) + exp(6*x). (End)

%t Table[2^n + 5^n + 6^n, {n, 0, 20}]

%o (MAGMA) [2^n + 5^n + 6^n: n in [0..25]]; // _Vincenzo Librandi_, Jun 11 2011

%Y Cf. A001550, A001576, A034513, A001579, A074501 - A074580.

%K easy,nonn

%O 0,1

%A _Robert G. Wilson v_, Aug 23 2002

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Last modified April 5 05:06 EDT 2020. Contains 333238 sequences. (Running on oeis4.)