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2, 12, 74, 468, 3026, 19932, 133274, 901668, 6155426, 42306732, 292240874, 2026154868, 14085427826, 98109713532, 684326588474, 4778079088068, 33385518460226, 233393453440332, 1632228295176074, 11417968671701268
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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FORMULA
| G.f.: 1/(1-5*x)+1/(1-7*x). E.g.f.: e^(5*x)+e^(7*x). [From Mohammad K. Azarian (azarian(AT)evansville.edu), Jan 11 2009]
a(n)=12*a(n-1)-35*a(n-2) with a(0)=2, a(1)=12 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jul 21 2010]
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MATHEMATICA
| Table[5^n + 7^n, {n, 0, 20}]
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CROSSREFS
| Cf. A000051, A034472, A052539, A034474, A062394, A034491, A062395, A062396, A007689, A063376, A063481, A074600 - A074624.
Sequence in context: A020004 A078469 A014351 * A006936 A052875 A037725
Adjacent sequences: A074613 A074614 A074615 * A074617 A074618 A074619
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KEYWORD
| easy,nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 26 2002
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