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 A195859 #27 Aug 06 2025 12:06:36
%S A195859 0,0,254,6558,65532,390620,1679610,5764794,16777208,43046712,99999990,
%T A195859 214358870,429981684,815730708,1475789042,2562890610,4294967280,
%U A195859 6975757424,11019960558,16983563022,25599999980,37822859340,54875873514,78310985258,110075314152
%N A195859 a(n) = n^8-n.
%H A195859 Vincenzo Librandi, <a href="/A195859/b195859.txt">Table of n, a(n) for n = 0..10000</a>
%H A195859 <a href="/index/Rec#order_09">Index entries for linear recurrences with constant coefficients</a>, signature (9,-36,84,-126,126,-84,36,-9,1).
%F A195859 G.f.: -2*x^2*(127+2136*x+7827*x^2+7792*x^3+2157*x^4+120*x^5+x^6) / ( (x-1)^9 ). - _R. J. Mathar_, Sep 30 2011
%F A195859 a(n) = -n*A024005(n).
%t A195859 Table[n^8 - n, {n, 0, 40}] (* and *) LinearRecurrence[{9, -36, 84, -126, 126, -84, 36, -9, 1}, {0, 0, 254, 6558, 65532, 390620, 1679610, 5764794, 16777208}, 40] (* _Vladimir Joseph Stephan Orlovsky_, Feb 21 2012 *)
%o A195859 (Magma) [(n^8-n): n in [0..30]];
%o A195859 (PARI) a(n)=n^8-n \\ _Charles R Greathouse IV_, Oct 07 2015
%K A195859 nonn,easy
%O A195859 0,3
%A A195859 _Vincenzo Librandi_, Sep 30 2011