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4, 54, 604, 6654, 73204, 805254, 8857804, 97435854, 1071794404, 11789738454, 129687123004, 1426558353054, 15692141883604, 172613560719654, 1898749167916204, 20886240847078254, 229748649317860804, 2527235142496468854
(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 to sequences with 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), n>1.
G.f.: (4 + 6*x)/(1 - 12*x + 11*x^2). - Vincenzo Librandi, Jan 04 2013
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MATHEMATICA
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CoefficientList[Series[(4 + 6*x)/(1 - 12*x + 11*x^2), {x, 0, 30}], x] (* Vincenzo Librandi, Jan 04 2013 *)
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PROG
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(MAGMA) [5*11^n-1 : n in [0..20]]
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CROSSREFS
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Sequence in context: A001545 A208954 A073863 * A221395 A089205 A055774
Adjacent sequences: A199019 A199020 A199021 * A199023 A199024 A199025
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KEYWORD
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nonn,easy
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AUTHOR
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Vincenzo Librandi, Nov 02 2011
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STATUS
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approved
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