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 A279590 #4 Dec 17 2016 17:49:37
%S A279590 1,-3,4,-3,-1,8,-15,18,-13,-3,30,-63,89,-86,29,97,-278,453,-511,314,
%T A279590 245,-1151,2170,-2795,2305,-6,-4331,9921,-14534,14549,-5887,-13958,
%U A279590 43029,-72127,83898,-55979,-30079,174330,-342124,454087,-393943,45299,638945
%N A279590 Coefficients in the expansion of 1/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = e - 1.
%H A279590 Clark Kimberling, <a href="/A279590/b279590.txt">Table of n, a(n) for n = 0..1000</a>
%F A279590 G.f.: 1/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = e - 1.
%t A279590 z = 30; r = E - 1;
%t A279590 f[x_] := f[x] = Sum[Floor[r*(k + 1)] x^k, {k, 0, z}]; f[x]
%t A279590 CoefficientList[Series[1/f[x], {x, 0, 2*z}], x]
%Y A279590 Cf. A000210.
%K A279590 sign,easy
%O A279590 0,2
%A A279590 _Clark Kimberling_, Dec 16 2016