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5, 15, 45, 135, 405, 1215, 3645, 10935, 32805, 98415, 295245, 885735, 2657205, 7971615, 23914845, 71744535, 215233605, 645700815, 1937102445, 5811307335, 17433922005, 52301766015, 156905298045, 470715894135, 1412147682405, 4236443047215, 12709329141645
(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..300
Index entries for sequences related to linear recurrences with constant coefficients
Milan Janjic, Enumerative Formulas for Some Functions on Finite Sets
Tanya Khovanova, Recursive Sequences
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FORMULA
| O.g.f.: 5/(1-3*x) . - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 31 2008
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MATHEMATICA
| 5*3^Range[0, 60] (* From Vladimir Joseph Stephan Orlovsky, June 09 2011 *)
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PROG
| (MAGMA) [5*3^n: n in [0..30]]; // Vincenzo Librandi, Jun 10 2011
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CROSSREFS
| Sequence in context: A000335 A200465 A084244 * A200664 A099235 A207096
Adjacent sequences: A005027 A005028 A005029 * A005031 A005032 A005033
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KEYWORD
| nonn,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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