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 A282404 #14 Feb 27 2018 04:57:31 %S A282404 1,-1776,975888,-66529344,-79516693488,9511628122080,2031621786790848, %T A282404 134911299030780288,4962883791154433040,119289719378991436368, %U A282404 2051366007318600561120,26893975935849646148928,281804567385216854182848 %N A282404 Coefficients in q-expansion of E_4*E_6^4, where E_4 and E_6 are respectively the Eisenstein series A004009 and A013973. %H A282404 Seiichi Manyama, <a href="/A282404/b282404.txt">Table of n, a(n) for n = 0..1000</a> %t A282404 terms = 13; %t A282404 E4[x_] = 1 + 240*Sum[k^3*x^k/(1 - x^k), {k, 1, terms}]; %t A282404 E6[x_] = 1 - 504*Sum[k^5*x^k/(1 - x^k), {k, 1, terms}]; %t A282404 E4[x]*E6[x]^4 + O[x]^terms // CoefficientList[#, x]& (* _Jean-François Alcover_, Feb 27 2018 *) %Y A282404 Cf. A013974 (E_4*E_6 = E_10), A282287 (E_4*E_6^2), A282328 (E_4*E_6^3), this sequence (E_4*E_6^4). %K A282404 sign %O A282404 0,2 %A A282404 _Seiichi Manyama_, Feb 14 2017