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 A145700 #14 Jan 17 2024 07:48:26
%S A145700 3,2068,1220411,720040716,424822802323,250644733330148,
%T A145700 147879967841985291,87248930382037991836,51476721045434573198243,
%U A145700 30371178167876016148971828,17918943642325804093320180571,10572146377794056539042757565356,6237548443954851032231133643379763
%N A145700 Numbers x such that there exists n in N with (x+1)^3-x^3=37*n^2.
%H A145700 <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (591,-591,1).
%F A145700 a(n+2) = 590*a(n+1)-a(n)+294.
%F A145700 G.f.: x*(4*x^2-295*x-3) / ((x-1)*(x^2-590*x+1)). - _Colin Barker_, Oct 18 2014
%t A145700 LinearRecurrence[{591, -591, 1}, {3, 2068, 1220411}, 15] (* _Paolo Xausa_, Jan 17 2024 *)
%o A145700 (PARI) Vec(x*(4*x^2-295*x-3)/((x-1)*(x^2-590*x+1)) + O(x^20)) \\ _Colin Barker_, Oct 18 2014
%K A145700 easy,nonn
%O A145700 1,1
%A A145700 _Richard Choulet_, Oct 16 2008
%E A145700 Editing and more terms from _Colin Barker_, Oct 18 2014