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 A054130 #9 Jun 13 2015 00:50:14 %S A054130 2,11,58,236,802,2396,6508,16448,39331,90102,199652,431128,912644, %T A054130 1902808,3921896,8014336,16273829,32893762,66268224,133194248, %U A054130 267276526,535737092,1073034964,2148105728,4298841031,8601047918,17206367884,34418115384,68842955288 %N A054130 T(n,4), array T as in A054126. %H A054130 <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (10,-44,112,-182,196,-140,64,-17,2). %F A054130 G.f.: x^4*(x-2)*(x^2-x+1)*(x^6-6*x^5+15*x^4-19*x^3+12*x^2-3*x+1) / ((x-1)^8*(2*x-1)). - _Colin Barker_, Jan 26 2014 %o A054130 (PARI) Vec(x^4*(x-2)*(x^2-x+1)*(x^6-6*x^5+15*x^4-19*x^3+12*x^2-3*x+1)/((x-1)^8*(2*x-1)) + O(x^100)) \\ _Colin Barker_, Jan 26 2014 %K A054130 nonn,easy %O A054130 4,1 %A A054130 _Clark Kimberling_ %E A054130 More terms from _Colin Barker_, Jan 26 2014