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 A008432 #11 Oct 16 2018 07:58:16 %S A008432 1,180,3380,16320,52020,129064,262080,489600,840500,1330420,2050344, %T A008432 2986560,4194240,5878440,7862400,10216320,13415220,17163880,21250420, %U A008432 26585280,32826664,39475200,47960640,57087360,67108800,80452188,93590440,107091840,125827200,145415080 %N A008432 Theta series of D_10 lattice. %D A008432 J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 118. %H A008432 Seiichi Manyama, <a href="/A008432/b008432.txt">Table of n, a(n) for n = 0..10000</a> %t A008432 terms = 23; s = 1/2 (EllipticTheta[3, 0, q]^10 + EllipticTheta[4, 0, q]^10) + O[q]^(2 terms); CoefficientList[s, q^2] (* _Jean-François Alcover_, Jul 07 2017 *) %K A008432 nonn,easy %O A008432 0,2 %A A008432 _N. J. A. Sloane_ %E A008432 More terms from _Seiichi Manyama_, Oct 16 2018