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 A199022 5*11^n-1. 1
 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)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..900 Index to sequences with linear recurrences with constant coefficients, signature (12,-11). FORMULA 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 MATHEMATICA CoefficientList[Series[(4 + 6*x)/(1 - 12*x + 11*x^2), {x, 0, 30}], x] (* Vincenzo Librandi, Jan 04 2013 *) PROG (MAGMA) [5*11^n-1 : n in [0..20]] CROSSREFS Sequence in context: A001545 A208954 A073863 * A221395 A089205 A055774 Adjacent sequences:  A199019 A199020 A199021 * A199023 A199024 A199025 KEYWORD nonn,easy AUTHOR Vincenzo Librandi, Nov 02 2011 STATUS approved

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