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5, 45, 485, 5325, 58565, 644205, 7086245, 77948685, 857435525, 9431790765, 103749698405, 1141246682445, 12553713506885, 138090848575725, 1518999334332965, 16708992677662605, 183798919454288645, 2021788113997175085
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history;
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OFFSET
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0,1
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LINKS
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Vincenzo Librandi, Table of n, a(n) for n = 0..900
Index entries for linear recurrences with constant coefficients, signature (12,-11).
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FORMULA
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a(n) = 5*A083077
a(n) = 11*a(n-1)-10.
a(n) = 12*a(n-1)-11*a(n-2).
G.f.: 5*(1-3*x)/((1-x)*(1-11*x)).
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MATHEMATICA
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4*11^Range[0, 20]+1 (* or *) LinearRecurrence[{12, -11}, {5, 45}, 20] (* Harvey P. Dale, Mar 28 2012 *)
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PROG
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(Magma)[4*11^n+1: n in [0..30]];
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CROSSREFS
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Sequence in context: A001449 A209442 A340943 * A220877 A130976 A191095
Adjacent sequences: A199750 A199751 A199752 * A199754 A199755 A199756
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KEYWORD
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nonn,easy
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AUTHOR
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Vincenzo Librandi, Nov 10 2011
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STATUS
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approved
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