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 A180354 #19 Jun 12 2017 09:55:03
%S A180354 0,5,24,93,272,645,1320,2429,4128,6597,10040,14685,20784,28613,38472,
%T A180354 50685,65600,83589,105048,130397,160080,194565,234344,279933,331872,
%U A180354 390725,457080,531549,614768,707397,810120,923645,1048704,1186053
%N A180354 a(n) = n^4 + 4*n.
%H A180354 <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (5,-10,10,-5,1).
%F A180354 From _Chai Wah Wu_, Oct 15 2016: (Start)
%F A180354 a(n) = 5*a(n-1) - 10*a(n-2) + 10*a(n-3) - 5*a(n-4) + a(n-5) for n > 4.
%F A180354 G.f.: x*(3*x^3 - 23*x^2 + x - 5)/(x - 1)^5. (End)
%t A180354 Table[n^4+4n,{n,0,40}] (* or *) LinearRecurrence[{5,-10,10,-5,1},{0,5,24,93,272},40] (* _Harvey P. Dale_, Jun 12 2017 *)
%o A180354 (PARI) a(n) = n^4 + 4*n; \\ _Michel Marcus_, Jan 11 2014
%Y A180354 Cf. A079908.
%K A180354 easy,nonn
%O A180354 0,2
%A A180354 _Odimar Fabeny_, Aug 30 2010
%E A180354 a(0) corrected by _R. J. Mathar_, Sep 19 2010