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A016111 Expansion of 1/((1-11x)(1-12x)(1-13x)(1-14x)(1-15x)). 4

%I #19 Sep 28 2023 14:24:26

%S 1,65,2540,77350,2022951,47708115,1043778730,21572322200,426384404501,

%T 8130687730165,150551375530920,2720251171051050,48146139744079651,

%U 837259855674756215,14340645378939543110

%N Expansion of 1/((1-11x)(1-12x)(1-13x)(1-14x)(1-15x)).

%H Vincenzo Librandi, <a href="/A016111/b016111.txt">Table of n, a(n) for n = 0..200</a>

%H A. J. Macula, <a href="http://www.jstor.org/stable/2690571">Lewis Carroll and the enumeration of minimal covers</a>, Math. Mag., 68 (1995), 269-274.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/MinimalCover.html">Minimal Cover</a>

%H <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (65, -1685, 21775, -140274, 360360).

%t CoefficientList[Series[1 / ((1 - 11 x) (1 - 12 x) (1 - 13 x) (1 - 14 x) (1 - 15 x)), {x, 0, 20}], x] (* _Vincenzo Librandi_, Jun 24 2013 *)

%o (PARI) Vec(1/((1-11*x)*(1-12*x)*(1-13*x)*(1-14*x)*(1-15*x))+O(x^99)) \\ _Charles R Greathouse IV_, Sep 26 2015

%K nonn,easy

%O 0,2

%A _Robert G. Wilson v_

%E Offset changed from 1 to 0. Typo in name fixed by _Vincenzo Librandi_, Jun 24 2013

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)