PROG
(MAGMAMagma) [5^n + 6^n + 8^n: n in [0..20]]; // Vincenzo Librandi, May 20 2011
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(MAGMAMagma) [5^n + 6^n + 8^n: n in [0..20]]; // Vincenzo Librandi, May 20 2011
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a(n) = 19*a(n-1)-118*a(n-2)+240*a(n-3). - Wesley Ivan Hurt, Apr 26 2021
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a(n) = 5^n + 6^n + 8^n.
From Mohammad K. Azarian, Dec 30 2008: (Start)
G.f.: 1/(1-5*x) + 1/(1-6*x) + 1/(1-8*x). E.g.f.: e^(5*x)+e^(6*x)+e^(8*x). [From _Mohammad K. Azarian_, Dec 30 2008]
E.g.f.: e^(5*x) + e^(6*x) + e^(8*x). (End)
(MAGMA) [5^n + 6^n + 8^n: n in [0..20]]; // _Vincenzo Librandi, _, May 20 2011
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<a href="/index/Rea#recLCCRec">Index entries for linear recurrences with constant coefficients</a>, signature (19,-118,240).
G.f.: 1/(1-5*x)+1/(1-6*x)+1/(1-8*x). E.g.f.: e^(5*x)+e^(6*x)+e^(8*x). [From __Mohammad K. Azarian__, , Dec 30 2008]