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A074609 3^n + 8^n. 0
2, 11, 73, 539, 4177, 33011, 262873, 2099339, 16783777, 134237411, 1073800873, 8590111739, 68720008177, 549757408211, 4398051294073, 35184386437739, 281475019757377, 2251799942825411, 18014398896902473, 144115189238117339 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

FORMULA

G.f.: 1/(1-3*x)+1/(1-8*x). E.g.f.: e^(3*x)+e^(8*x). [From Mohammad K. Azarian (azarian(AT)evansville.edu), Jan 11 2009]

a(n)=11*a(n-1)-24*a(n-2) with a(0)=2, a(1)=11 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jul 21 2010]

MATHEMATICA

Table[3^n + 8^n, {n, 0, 25}]

CROSSREFS

Cf. A000051, A034472, A052539, A034474, A062394, A034491, A062395, A062396, A007689, A063376, A063481, A074600 - A074624.

Sequence in context: A186633 A154887 A049671 * A199417 A114179 A166992

Adjacent sequences:  A074606 A074607 A074608 * A074610 A074611 A074612

KEYWORD

easy,nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 25 2002

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Last modified February 15 13:25 EST 2012. Contains 205801 sequences.