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 A201163 #29 Jan 31 2023 08:30:09
%S A201163 2,1,-2,5,-9,14,-20,27,-35,44,-54,65,-77,90,-104,119,-135,152,-170,
%T A201163 189,-209,230,-252,275,-299,324,-350,377,-405,434,-464,495,-527,560,
%U A201163 -594,629,-665,702,-740,779,-819,860,-902,945,-989,1034,-1080,1127,-1175,1224,-1274,1325,-1377,1430,-1484,1539,-1595,1652,-1710,1769,-1829,1890,-1952,2015
%N A201163 Expansion of g.f. 1+x+(1+3*x+x^2)/(1+x)^3.
%H A201163 Vincenzo Librandi, <a href="/A201163/b201163.txt">Table of n, a(n) for n = 0..1000</a>
%H A201163 Tian-Xiao He and Renzo Sprugnoli, <a href="https://doi.org/10.1016/j.disc.2008.11.021">Sequence characterization of Riordan arrays</a>, Discrete Math. 309 (2009), no. 12, 3962-3974.
%H A201163 <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (-3,-3,-1).
%F A201163 a(n) = (-1)^(n+1)*A000096(n-1), n>1. - _R. J. Mathar_, Nov 28 2011
%F A201163 Sum_{n>=0} 1/a(n) = 37/18 - 4*log(2)/3. - _Amiram Eldar_, Jan 31 2023
%t A201163 Join[{2, 1}, LinearRecurrence[{-3, -3, -1}, {-2, 5, -9}, 70]] (* _Vladimir Joseph Stephan Orlovsky_, Feb 22 2012 *)
%t A201163 CoefficientList[Series[1+x+(1+3*x+x^2)/(1+x)^3,{x,0,70}],x] (* _Harvey P. Dale_, Aug 01 2020 *)
%Y A201163 Cf. A000096.
%K A201163 sign,easy
%O A201163 0,1
%A A201163 _N. J. A. Sloane_, Nov 27 2011