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A074510
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1^n + 3^n + 8^n.
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0
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3, 12, 74, 540, 4178, 33012, 262874, 2099340, 16783778, 134237412, 1073800874, 8590111740, 68720008178, 549757408212, 4398051294074, 35184386437740, 281475019757378, 2251799942825412, 18014398896902474, 144115189238117340
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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FORMULA
| G.f.: 1/(1-x)+1/(1-3*x)+1/(1-8*x). E.g.f.: e^x+e^(3*x)+e^(8*x). [From Mohammad K. Azarian (azarian(AT)evansville.edu), Dec 26 2008]
a(n)=11*a(n-1)-24*a(n-2)+14 with a(0)=3, a(1)=12 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jul 21 2010]
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MATHEMATICA
| Table[1^n + 3^n + 8^n, {n, 0, 20}]
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CROSSREFS
| Cf. A001550, A001576, A034513, A001579, A074501 - A074580.
Sequence in context: A060906 A163860 A104028 * A176408 A168366 A134524
Adjacent sequences: A074507 A074508 A074509 * A074511 A074512 A074513
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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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