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 A178512 Reversed decimal expansions of A178510. 2
 1, 121, 14521, 1742521, 209102521, 25092302521, 3011076302521, 361329156302521, 43359498756302521, 5203139850756302521, 624376782090756302521, 74925213850890756302521, 8991025662106890756302521, 1078923079452826890756302521, 129470769534339226890756302521 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Related to backward decimal expansion of fraction 1/119 and Pell numbers.  [How? - Joerg Arndt, May 14 2011] LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..150 Index entries for linear recurrences with constant coefficients, signature (121,-120). FORMULA a(n) = 120*a(n-1) + 1. a(n) = (1/119)*(120^n-1), with n >= 1. - Paolo P. Lava, Jun 10 2010 From Colin Barker, Oct 02 2015: (Start) a(n) = 121*a(n-1) - 120*a(n-2) for n > 2. G.f.: x / ((x-1)*(120*x-1)). (End) PROG (MAGMA) [(1/119)*(120^n-1): n in [1..20]]; // Vincenzo Librandi, May 17 2011 (PARI) Vec(x/((x-1)*(120*x-1)) + O(x^20)) \\ Colin Barker, Oct 02 2015 CROSSREFS Cf. A000129, A021083, A038207, A178510, A178511. Sequence in context: A178510 A066625 A078277 * A050740 A121013 A287728 Adjacent sequences:  A178509 A178510 A178511 * A178513 A178514 A178515 KEYWORD nonn,base,easy AUTHOR Mark Dols, May 29 2010 STATUS approved

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Last modified January 19 20:33 EST 2019. Contains 319310 sequences. (Running on oeis4.)