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2, 7, 29, 133, 641, 3157, 15689, 78253, 390881, 1953637, 9766649, 48830173, 244144721, 1220711317, 6103532009, 30517610893, 152587956161, 762939584197, 3814697527769, 19073486852413, 95367432689201, 476837160300277
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,1
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LINKS
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Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for sequences related to linear recurrences with constant coefficients
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FORMULA
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a(n) = 5*a(n-1)-3*2^(n-1) = 7*a(n-1)- 10*a(n-2). [Corrected by Zak Seidov, Oct 24 2009]
G.f.: 1/(1-2*x)+1/(1-5*x). E.g.f.: e^(2*x)+e^(5*x). [From Mohammad K. Azarian, Jan 02 2009]
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MATHEMATICA
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Table[2^n + 5^n, {n, 0, 25}]
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PROG
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(MAGMA) [2^n + 5^n: n in [0..35]]; // Vincenzo Librandi, Apr 30 2011
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CROSSREFS
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Cf. A000051, A034472, A052539, A034474, A062394, A034491, A062395, A062396, A007689, A063376, A063481, A074601 - A074624.
Sequence in context: A132262 A007852 A110576 * A064641 A183608 A104252
Adjacent sequences: A074597 A074598 A074599 * A074601 A074602 A074603
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KEYWORD
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easy,nonn
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AUTHOR
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Robert G. Wilson v, Aug 25 2002
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STATUS
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approved
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