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Search: id:A117617
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| A117617 |
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a(n) = 5*a(n-1) + 3 with a(0) = 1. |
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+0
3
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| 1, 8, 43, 218, 1093, 5468, 27343, 136718, 683593, 3417968, 17089843, 85449218, 427246093, 2136230468, 10681152343, 53405761718, 267028808593, 1335144042968, 6675720214843, 33378601074218, 166893005371093
(list; graph; listen)
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OFFSET
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0,2
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FORMULA
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a(n)=-(3/4)+(7/4)*5^n, with n>=0 - Paolo P. Lava (ppl(AT)spl.at), Jul 07 2008
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EXAMPLE
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If n=1 then a(1) = 5*a(0) + 3 = 5*1 + 3 = 8 which is the second term.
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MATHEMATICA
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a[0] := 1; a[n_] := 5*a[n - 1] + 3; Table[a[n], {n, 0, 35}] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Apr 08 2006
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CROSSREFS
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Cf. A116952.
Sequence in context: A122880 A099253 A034361 this_sequence A111365 A144039 A044110
Adjacent sequences: A117614 A117615 A117616 this_sequence A117618 A117619 A117620
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KEYWORD
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nonn
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AUTHOR
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Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Apr 07 2006
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EXTENSIONS
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More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Apr 08 2006
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