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 A024129 #20 Jul 08 2025 17:28:21
%S A024129 1,10,117,1322,14625,161026,1771525,19487122,214358817,2357947610,
%T A024129 25937424501,285311670490,3138428376577,34522712143762,
%U A024129 379749833583045,4177248169415426,45949729863571905,505447028499293482
%N A024129 11^n-n^2.
%H A024129 Vincenzo Librandi, <a href="/A024129/b024129.txt">Table of n, a(n) for n = 0..300</a>
%H A024129 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (14,-36,34,-11).
%F A024129 G.f.: (1-4*x+13*x^2+10*x^3)/((1-11*x)*(1-x)^3). - _Vincenzo Librandi_, Oct 06 2014
%t A024129 Table[11^n - n^2, {n, 0, 25}] (* or *) CoefficientList[Series[(1 - 4 x + 13 x^2 + 10 x^3)/((1 - 11 x) (1 - x)^3), {x, 0, 30}], x] (* _Vincenzo Librandi_, Oct 06 2014 *)
%t A024129 LinearRecurrence[{14,-36,34,-11},{1,10,117,1322},20] (* _Harvey P. Dale_, Jul 03 2021 *)
%o A024129 (Magma) [11^n-n^2: n in [0..20]]; // _Vincenzo Librandi_, Jul 01 2011
%o A024129 (PARI) a(n)=11^n-n^2 \\ _Charles R Greathouse IV_, Jul 01 2011
%Y A024129 Cf. similar sequences listed in A024025.
%K A024129 nonn,easy
%O A024129 0,2
%A A024129 _N. J. A. Sloane_