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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 February 17 00:25 EST 2020. Contains 331976 sequences. (Running on oeis4.)