The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #4 Mar 02 2018 20:16:13
%S 1,-456,-39600,-1516256,-37547076,-695294928,-10390984576,
%T -131304417600,-1447427871414,-14232212453368,-126913165432704,
%U -1039564575554400,-7901386666587800,-56184964286852016,-376299050740397568
%N Fourier coefficients of T_{20}.
%D C. L. Siegel, Advanced Analytic Number Theory, Tata Institute of Fundamental Research, Bombay, 1980, pp. 249-268.
%F G.f.: G_6/Delta^2 (in Siegel's notation.)
%e T_{20} = 1 q^(-2) - 456 q^(-1) - 39600 q^0 - 1516256 q^1 - 37547076 q^2 - ....
%Y Cf. A048057, A006922, A048100, A048101, A048110, A048145.
%K easy,sign
%O -2,2
%A Barry Brent (barryb(AT)primenet.com)