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4, 34, 364, 3994, 43924, 483154, 5314684, 58461514, 643076644, 7073843074, 77812273804, 855935011834, 9415285130164, 103568136431794, 1139249500749724, 12531744508246954, 137849189590716484, 1516341085497881314
(list;
graph;
refs;
listen;
history;
text;
internal format)
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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) = 11*a(n-1)-10.
a(n) = 12*a(n-1)-11*a(n-2).
G.f.: 2*(2-7*x)/((1-x)*(1-11*x)).
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MATHEMATICA
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LinearRecurrence[{12, -11}, {4, 34}, 30] (* or *) NestList[11#-10&, 4 , 30] (* Harvey P. Dale, May 09 2013 *)
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PROG
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(Magma) [3*11^n+1: n in [0..30]];
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CROSSREFS
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Sequence in context: A107350 A206180 A274344 * A264607 A307941 A084973
Adjacent sequences: A199749 A199750 A199751 * A199753 A199754 A199755
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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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