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 A329514 #13 Oct 08 2022 11:23:24 %S A329514 1,3,6,9,12,15,14,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, %T A329514 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, %U A329514 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12 %N A329514 Expansion of g.f.: (2*x^5-3*x^4+x^3-2*x^2-1)*(1+x)^2/(x-1). %H A329514 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (1). %F A329514 a(n) = 12 for n >= 7. %F A329514 E.g.f.: 12*exp(x) - 11 - 9*x - x^2*(1080 + 180*x - 9*x^3 - x^4)/360. - _Stefano Spezia_, Oct 08 2022 %Y A329514 Row 3 of array in A329512. %K A329514 nonn,easy %O A329514 0,2 %A A329514 _N. J. A. Sloane_, Nov 24 2019