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2, 10, 68, 520, 4112, 32800, 262208, 2097280, 16777472, 134218240, 1073742848, 8589936640, 68719480832, 549755822080, 4398046527488, 35184372121600, 281474976776192, 2251799813816320, 18014398509744128, 144115188076380160
(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
| a(n) = 8*a(n-1)-2^n = 10*a(n-1)- 16*a(n-2).
G.f.: 1/(1-2*x)+1/(1-8*x). E.g.f.: e^(2*x)+e^(8*x). [From Mohammad K. Azarian (azarian(AT)evansville.edu), Jan 02 2009]
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MATHEMATICA
| Table[2^n + 8^n, {n, 0, 25}]
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PROG
| (MAGMA) [2^n + 8^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: A152620 A152621 A147725 * A110520 A136633 A082580
Adjacent sequences: A074600 A074601 A074602 * A074604 A074605 A074606
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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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