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Search: id:A015602
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| A015602 |
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a(n) = 11 a(n-1) + 8 a(n-2). |
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+0
1
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| 0, 1, 11, 129, 1507, 17609, 205755, 2404177, 28091987, 328245273, 3835433899, 44815735073, 523656556995, 6118748007529, 71495480538779, 835400269986801, 9761366814165043, 114058237115709881
(list; graph; listen)
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OFFSET
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0,3
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FORMULA
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a(n)=(1/51)*sqrt(17)*[11/2+(3/2)*sqrt(17)]^n-(1/51)*[11/2-(3/2)*sqrt(17)]^n*sqrt(17), with n>=0 - Paolo P. Lava (ppl(AT)spl.at), Jul 09 2008
G.f.:1/(1-11*x-8*x^2) . [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Apr 27 2009]
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PROGRAM
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(Other) sage: [lucas_number1(n, 11, -8) for n in xrange(0, 18)]# [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Apr 27 2009]
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CROSSREFS
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Sequence in context: A015598 A015601 A024144 this_sequence A015603 A157718 A046210
Adjacent sequences: A015599 A015600 A015601 this_sequence A015603 A015604 A015605
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KEYWORD
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nonn,easy
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AUTHOR
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Olivier Gerard (olivier.gerard(AT)gmail.com)
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