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 A282253 #15 Feb 26 2018 19:20:23
%S A282253 1,-1512,712152,-78097824,-11474230824,-498089967984,-11088580243104,
%T A282253 -152351956669248,-1474676091461160,-10921529499813576,
%U A282253 -65490182325115632,-331010378444247264,-1452953351890984608,-5665062963045803184,-19968586384352171328
%N A282253 Coefficients in q-expansion of E_6^3, where E_6 is the Eisenstein series shown in A013973.
%H A282253 Seiichi Manyama, <a href="/A282253/b282253.txt">Table of n, a(n) for n = 0..1000</a>
%t A282253 terms = 15;
%t A282253 E6[x_] = 1 - 504*Sum[k^5*x^k/(1 - x^k), {k, 1, terms}];
%t A282253 E6[x]^3 + O[x]^terms // CoefficientList[#, x]& (* _Jean-François Alcover_, Feb 26 2018 *)
%Y A282253 Cf. A282018 (E_2^3), A008411 (E_4^3), this sequence (E_6^3).
%Y A282253 Cf. A013973 (E_6), A280869 (E_6^2), this sequence (E_6^3).
%K A282253 sign
%O A282253 0,2
%A A282253 _Seiichi Manyama_, Feb 10 2017