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 A133496 #17 Sep 08 2022 08:45:32 %S A133496 0,841,3364,7569,13456,21025,30276,41209,53824,68121,84100,101761, %T A133496 121104,142129,164836,189225,215296,243049,272484,303601,336400, %U A133496 370881,407044,444889,484416,525625,568516,613089,659344,707281,756900,808201 %N A133496 a(n) = (29*n)^2. %H A133496 Vincenzo Librandi, <a href="/A133496/b133496.txt">Table of n, a(n) for n = 0..750</a> %H A133496 <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (3,-3,1). %F A133496 G.f.: -841*x*(1+x) / (x-1)^3 . - _R. J. Mathar_, Mar 13 2015 %e A133496 a(1) = 29^2 = 841, a(2) = 58^2 = 3364, a(3) = 87^2 = 7569. %o A133496 (Magma) [(29*n)^2: n in [0..50]]; // _Vincenzo Librandi_, Apr 26 2011 %o A133496 (PARI) a(n)=(29*n)^2 \\ _Charles R Greathouse IV_, Jun 17 2017 %Y A133496 Cf. A016850. %K A133496 nonn,easy %O A133496 0,2 %A A133496 _Richard Choulet_, Dec 23 2007 %E A133496 More terms from _Philippe Deléham_, Dec 21 2008 %E A133496 a(12) corrected by _Vincenzo Librandi_, Apr 26 2011