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A155598 7^n-2^n+1^n 27
1, 6, 46, 336, 2386, 16776, 117586, 823416, 5764546, 40353096, 282474226, 1977324696, 13841283106, 96889002216, 678223056466, 4747561477176, 33232930504066, 232630513856136, 1628413597648306, 11398895184848856 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

LINKS

Index entries for sequences related to linear recurrences with constant coefficients, signature (10,-23,14).

FORMULA

G.f.: 1/(1-7*x)-1/(1-2*x)+1/(1-x). E.g.f.: e^(7*x)-e^(2*x)+e^x.

a(n)=9*a(n-1)-14*a(n-2)+6 with a(0)=1, a(1)=6 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jul 21 2010]

CROSSREFS

Cf. A074501, A020515, A155588, A155590, A155592, A155593, A155594, A155596, A155597

Sequence in context: A079910 A103768 A073507 * A190005 A084772 A199563

Adjacent sequences:  A155595 A155596 A155597 * A155599 A155600 A155601

KEYWORD

nonn,easy

AUTHOR

Mohammad K. Azarian (azarian(AT)evansville.edu), Jan 25 2009

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Last modified February 17 09:17 EST 2012. Contains 206009 sequences.