%I
%S 1,0,0,0,0,0,0,0,0,0,42,0,0,0,0,0,0,0,0,420,0,420,0,0,0,0,0,2660,0,0,
%T 0,7980,0,0,11970,0,0,0,0,0,88620,0,35910,0,0,108528,0,0,204330,
%U 232560,0,0,814800,0,587860,1364580,0,0,0,0,0,3319680,0,1093260,0
%N Theta series of A*_20 lattice.
%D J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", SpringerVerlag, p. 114.
%H Kok Seng Chua, <a href="https://doi.org/10.1090/S0002993901060804">The Root Lattice A*n and Ramanujan's Circular Summation of Theta Functions</a>, Proc. Amer. Math. Soc. 130 (2002), 18.
%K nonn
%O 0,11
%A _N. J. A. Sloane_.
%E More terms from _Sean A. Irvine_, Jul 15 2020
