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 A196258 a(n) = 11^n*n!. 2
 1, 11, 242, 7986, 351384, 19326120, 1275523920, 98215341840, 8642950081920, 855652058110080, 94121726392108800, 11388728893445164800, 1503312213934761753600, 214973646592670930764800, 33105941575271323337779200 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..300 FORMULA a(n) = 11^n*n! E.g.f.: 1/(1-11*x). From Amiram Eldar, Jun 25 2020: (Start) Sum_{n>=0) 1/a(n) = e^(1/11). Sum_{n>=0) (-1)^n/a(n) = e^(-1/11). (End) MATHEMATICA Table[11^n n!, {n, 0, 20}] (* Harvey P. Dale, Sep 21 2015 *) PROG (Magma) [(Factorial(n)*11^n): n in [0..20]]; // Vincenzo Librandi, Oct 28 2011 (PARI) a(n)=11^n*n! \\ Charles R Greathouse IV, Nov 22 2011 CROSSREFS Cf. A000142, A000165, A032031, A047053, A052562, A047058, A051188, A051189, A051232, A051262, A145448. Sequence in context: A361143 A267642 A267665 * A121826 A041223 A041220 Adjacent sequences: A196255 A196256 A196257 * A196259 A196260 A196261 KEYWORD nonn,easy,less AUTHOR Philippe Deléham, Oct 27 2011 STATUS approved

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Last modified September 19 12:32 EDT 2024. Contains 376012 sequences. (Running on oeis4.)