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 A152017 #21 Sep 08 2022 08:45:39
%S A152017 0,-3,2,123,684,2345,6222,14007,28088,51669,88890,144947,226212,
%T A152017 340353,496454,705135,978672,1331117,1778418,2338539,3031580,3879897,
%U A152017 4908222,6143783,7616424,9358725,11406122,13797027,16572948,19778609,23462070
%N A152017 a(n) = n^5-n^4-n^3-n^2-n.
%H A152017 Vincenzo Librandi, <a href="/A152017/b152017.txt">Table of n, a(n) for n = 0..10000</a>
%H A152017 <a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (6,-15,20,-15,6,-1).
%F A152017 a(n) = 6*a(n-1)- 15*a(n-2)+20*a(n-3)-15*a(n-4)+6*a(n-5)-a(n-6), n>5. - _Harvey P. Dale_, Sep 13 2011
%F A152017 G.f. x*(-3+20*x+66*x^2+36*x^3+x^4) / (x-1)^6. - _R. J. Mathar_, Nov 17 2011
%t A152017 lst={};Do[AppendTo[lst,n^5-n^4-n^3-n^2-n],{n,0,5!}];lst
%t A152017 Table[n^5-Total[n^Range[4]],{n,0,30}] (* or *) LinearRecurrence[ {6,-15,20,-15,6,-1},{0,-3,2,123,684,2345},30](* _Harvey P. Dale_, Sep 13 2011 *)
%o A152017 (Magma) [n^5-n^4-n^3-n^2-n: n in [0..40]]; // _Vincenzo Librandi_, Nov 18 2011
%Y A152017 Cf. A152015, A152016.
%K A152017 sign,easy
%O A152017 0,2
%A A152017 _Vladimir Joseph Stephan Orlovsky_, Nov 20 2008
%E A152017 Changed offset to 0 from _Bruno Berselli_, Nov 02 2011