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 A168118 #26 Sep 02 2025 06:04:55
%S A168118 0,1,513,29526,524290,4882815,30233091,141237628,536870916,1743392205,
%T A168118 5000000005,12968712306,30958682118,68929245931,144627327495,
%U A168118 288325195320,549755813896,1007996950233,1785233613321,3065533128910,5120000000010,8339940489111
%N A168118 a(n) = n*(n^9+1)/2.
%H A168118 Kelvin Voskuijl, <a href="/A168118/b168118.txt">Table of n, a(n) for n = 0..10000</a> (terms 0..1000 from T. D. Noe)
%H A168118 <a href="/index/Rec#order_11">Index entries for linear recurrences with constant coefficients</a>, signature (11,-55,165,-330,462,-462,330,-165,55,-11,1).
%F A168118 G.f.: x*(1 + 502*x + 23938*x^2 + 227554*x^3 + 655240*x^4 + 655114*x^5 + 227638*x^6 + 23902*x^7 + 511*x^8)/(1-x)^11. - _Vincenzo Librandi_, Dec 10 2014
%t A168118 Table[n (n^9 + 1)/2, {n, 0, 30}] (* _Bruno Berselli_, Dec 10 2014 *)
%t A168118 CoefficientList[Series[x (1 + 502 x + 23938 x^2 + 227554 x^3 + 655240 x^4 + 655114 x^5 + 227638 x^6 + 23902 x^7 + 511 x^8) / (1 - x)^11, {x, 0, 30}], x] (* _Vincenzo Librandi_, Dec 10 2014 *)
%o A168118 (Magma) [n*(n^9+1)/2: n in [0..30]]; // _Vincenzo Librandi_, Dec 10 2014
%Y A168118 Cf. A170783.
%K A168118 nonn,easy,changed
%O A168118 0,3
%A A168118 _N. J. A. Sloane_, Dec 11 2009