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 A133853 a(n) = (64^n - 1)/63. 34
 0, 1, 65, 4161, 266305, 17043521, 1090785345, 69810262081, 4467856773185, 285942833483841, 18300341342965825, 1171221845949812801, 74958198140788019265, 4797324681010433232961, 307028779584667726909505, 19649841893418734522208321 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Partial sums of powers of 64 (A089357), a.k.a. q-numbers for q=64. LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..500 Quynh Nguyen, Jean Pedersen, and Hien T. Vu, New Integer Sequences Arising From 3-Period Folding Numbers, Vol. 19 (2016), Article 16.3.1. See Table 1. Index entries for linear recurrences with constant coefficients, signature (65,-64). MATHEMATICA LinearRecurrence[{65, -64}, {0, 1}, 20] (* Harvey P. Dale, Aug 20 2017 *) PROG (MAGMA) [(64^n-1)/63: n in [0..20]]; // Vincenzo Librandi, Aug 10 2011 (PARI) A133853(n)=64^n\63 (Maxima) makelist((64^n-1)/63, n, 0, 20); /* Martin Ettl, Nov 12 2012 */ CROSSREFS Cf. A000364. Cf. similar sequences of the form (k^n-1)/(k-1) listed in A269025. Sequence in context: A069225 A211960 A293695 * A188693 A206876 A188506 Adjacent sequences:  A133850 A133851 A133852 * A133854 A133855 A133856 KEYWORD nonn,easy AUTHOR Paul Curtz, Jan 07 2008 EXTENSIONS a(6)-a(15) from Vincenzo Librandi, Aug 10 2011 STATUS approved

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Last modified August 19 21:24 EDT 2018. Contains 313896 sequences. (Running on oeis4.)