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 A132434 a(n) = A132433(n) - 33. 2
 104, 1064, 8744, 70184, 561704, 4493864, 35951144, 287609384, 2300875304, 18407002664, 147256021544, 1178048172584, 9424385380904, 75395083047464, 603160664379944, 4825285315039784, 38602282520318504, 308818260162548264, 2470546081300386344 (list; graph; refs; listen; history; text; internal format)
 OFFSET 3,1 REFERENCES V. Reeben, The highly composite numbers by Srinivasa Ramanujan and the fundamental constants of physics. J. Madras Univ., Sect. B, 51 (Ramanujan's 100th birthday issue, with a Table of h.c.n.'s up to 10^102), (1988) 88-146. LINKS Colin Barker, Table of n, a(n) for n = 3..1000 Index entries for linear recurrences with constant coefficients, signature (9,-8). FORMULA From Colin Barker, May 12 2017: (Start) G.f.: 8*x^3*(13 + 16*x) / ((1 - x)*(1 - 8*x)). a(n) = (15*8^n - 1856) / 56 for n>2. a(n) = 9*a(n-1) - 8*a(n-2) for n>4. (End) PROG (PARI) Vec(8*x^3*(13 + 16*x) / ((1 - x)*(1 - 8*x)) + O(x^30)) \\ Colin Barker, May 12 2017 CROSSREFS Sequence in context: A206014 A106298 A230028 * A187589 A200196 A234219 Adjacent sequences:  A132431 A132432 A132433 * A132435 A132436 A132437 KEYWORD nonn,easy AUTHOR Vello Reeben (reeben(AT)ut.ee), Aug 25 2007 STATUS approved

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