This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A016111 #20 Feb 16 2025 08:32:33
%S A016111 1,65,2540,77350,2022951,47708115,1043778730,21572322200,426384404501,
%T A016111 8130687730165,150551375530920,2720251171051050,48146139744079651,
%U A016111 837259855674756215,14340645378939543110
%N A016111 Expansion of 1/((1-11x)(1-12x)(1-13x)(1-14x)(1-15x)).
%H A016111 Vincenzo Librandi, <a href="/A016111/b016111.txt">Table of n, a(n) for n = 0..200</a>
%H A016111 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 A016111 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MinimalCover.html">Minimal Cover</a>
%H A016111 <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (65, -1685, 21775, -140274, 360360).
%t A016111 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 A016111 (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 A016111 nonn,easy
%O A016111 0,2
%A A016111 _Robert G. Wilson v_
%E A016111 Offset changed from 1 to 0. Typo in name fixed by _Vincenzo Librandi_, Jun 24 2013