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 A008426 #9 Jul 08 2025 01:03:58
%S A008426 1,0,20,0,180,1024,960,0,3380,10240,8424,0,16320,46080,28800,0,52020,
%T A008426 133120,88660,0,129064,307200,175680,0,262080,626688,386920,0,489600,
%U A008426 1131520,600960,0,840500
%N A008426 Theta series of {D_10}* lattice.
%D A008426 J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 120.
%H A008426 G. Nebe and N. J. A. Sloane, <a href="http://www.math.rwth-aachen.de/~Gabriele.Nebe/LATTICES/Ds10.html">Home page for this lattice</a>
%K A008426 nonn,easy
%O A008426 0,3
%A A008426 _N. J. A. Sloane_