cp's OEIS Frontend

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.

A282015 Coefficients in q-expansion of E_4^5, where E_4 is the Eisenstein series shown in A004009.

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%I A282015 #21 Feb 26 2018 12:14:03
%S A282015 1,1200,586800,148641600,20400279600,1439038231200,46093334702400,
%T A282015 861697555612800,10894180752126000,102121497049868400,
%U A282015 755966260027216800,4623420005167550400,24151632380348692800,110516281318431693600,451789183426135939200
%N A282015 Coefficients in q-expansion of E_4^5, where E_4 is the Eisenstein series shown in A004009.
%D A282015 G. E. Andrews and B. C. Berndt, Ramanujan's lost notebook, Part III, Springer, New York, 2012, See p. 208.
%H A282015 Seiichi Manyama, <a href="/A282015/b282015.txt">Table of n, a(n) for n = 0..1000</a>
%F A282015 G.f.: (1 + 240 Sum_{i>=1} i^3 q^i/(1-q^i))^5.
%F A282015 13200 * A013967(n) = 174611 * a(n) - 209520000 * A037945(n) for n > 0.
%t A282015 terms = 15;
%t A282015 E4[x_] = 1 + 240*Sum[k^3*x^k/(1 - x^k), {k, 1, terms}];
%t A282015 E4[x]^5 + O[x]^terms // CoefficientList[#, x]& (* _Jean-François Alcover_, Feb 26 2018 *)
%Y A282015 Cf. A004009 (E_4), A008410 (E_4^2), A008411 (E_4^3), A282012 (E_4^4), this sequence (E_4^5).
%Y A282015 Cf. A013967, A037945, A281788.
%K A282015 nonn
%O A282015 0,2
%A A282015 _Seiichi Manyama_, Feb 05 2017