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A074563
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4^n + 5^n + 8^n.
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1
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3, 17, 105, 701, 4977, 36917, 281865, 2191661, 17233377, 136432997, 1084556025, 8642957021, 68980394577, 551043625877, 4404418462185, 35215963408781, 281631859568577, 2252579933007557, 18018281926224345, 144134536440090941
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..1000
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FORMULA
| G.f.: 1/(1-4*x)+1/(1-5*x)+1/(1-8*x). E.g.f.: exp(4*x)+exp(5*x)+exp(8*x). [From Mohammad K. Azarian, Dec 30 2008]
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MATHEMATICA
| Table[4^n + 5^n + 8^n, {n, 0, 20}]
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PROG
| (MAGMA) [4^n + 5^n + 8^n: n in [0..20]]; // Vincenzo Librandi, Aug 25 2011
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CROSSREFS
| Cf. A001550, A001576, A034513, A001579, A074501 - A074580.
Sequence in context: A036551 A162479 A194780 * A077145 A123772 A103730
Adjacent sequences: A074560 A074561 A074562 * A074564 A074565 A074566
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KEYWORD
| easy,nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 23 2002
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