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2, 8, 34, 152, 706, 3368, 16354, 80312, 397186, 1972808, 9824674, 49005272, 244672066, 1222297448, 6108298594, 30531927032, 152630937346, 763068593288, 3815084686114, 19074648589592, 95370918425026, 476847618556328
(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..200
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FORMULA
| G.f.: 1/(1-3*x)+1/(1-5*x). E.g.f.: e^(3*x)+e^(5*x). [From Mohammad K. Azarian (azarian(AT)evansville.edu), Jan 11 2009]
a(n)=8*a(n-1)-15*a(n-2) with a(0)=2, a(1)=8 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jul 21 2010]
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MATHEMATICA
| Table[3^n + 5^n, {n, 0, 25}]
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PROG
| (MAGMA) [3^n + 5^n: n in [0..35]]; // Vincenzo Librandi, Apr 30 2011
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CROSSREFS
| Cf. A000051, A034472, A052539, A034474, A062394, A034491, A062395, A062396, A007689, A063376, A063481, A074600 - A074624.
Sequence in context: A150889 A150890 A150891 * A002928 A150892 A150893
Adjacent sequences: A074603 A074604 A074605 * A074607 A074608 A074609
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KEYWORD
| easy,nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 25 2002
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