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 A095685 #17 Dec 27 2023 00:46:18
%S A095685 1,15,160,1600,15856,156976,1553920,15382240,152268496,1507302736,
%T A095685 14920758880,147700286080,1462082101936,14473120733296,
%U A095685 143269125231040,1418218131577120,14038912190540176,138970903773824656,1375670125547706400,13617730351703239360
%N A095685 Expansion of (1+x)^4/(1-11*x+11*x^2-x^3).
%H A095685 Colin Barker, <a href="/A095685/b095685.txt">Table of n, a(n) for n = 0..1000</a>
%H A095685 <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (11,-11,1).
%F A095685 a(n) = 18*A072256(n)-2, n>1. - _R. J. Mathar_, Jan 11 2009
%F A095685 a(n) = -2+3*(5-2*sqrt(6))^n*(3+sqrt(6))-3*(-3+sqrt(6))*(5+2*sqrt(6))^n for n>1. - _Colin Barker_, Mar 05 2016
%t A095685 CoefficientList[Series[(1 + x)^4/(1 - 11*x + 11*x^2 - x^3), {x, 0, 20}], x] (* _Wesley Ivan Hurt_, Dec 27 2023 *)
%o A095685 (PARI) Vec((1+x)^4/(1-11*x+11*x^2-x^3) + O(x^25)) \\ _Colin Barker_, Mar 05 2016
%Y A095685 Cf. A072256.
%K A095685 nonn,easy
%O A095685 0,2
%A A095685 _N. J. A. Sloane_, Jul 04 2004