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 A153258 #10 Jun 17 2017 02:59:30
%S A153258 -4,-8,-8,2,28,76,152,262,412,608,856,1162,1532,1972,2488,3086,3772,
%T A153258 4552,5432,6418,7516,8732,10072,11542,13148,14896,16792,18842,21052,
%U A153258 23428,25976,28702,31612,34712,38008,41506,45212,49132,53272,57638
%N A153258 n^3 - (n+2)^2.
%H A153258 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (4,-6,4,-1).
%F A153258 G.f.: 2*x*(x^3+4*x-2)/(x-1)^4. [_Colin Barker_, Oct 08 2012]
%t A153258 a[n_] := n^3-(n+2)^2; lst={}; Do[AppendTo[lst, a[n]], {n, 0, 5!}]; lst
%Y A153258 Cf. A045991, A081437, A069778, A153257
%K A153258 sign,easy
%O A153258 1,1
%A A153258 _Vladimir Joseph Stephan Orlovsky_, Dec 22 2008