%I #5 Aug 15 2015 10:35:33
%S 3,9,27,837,891,729,12393,277749,4782969,91703097,92293587,82019061,
%T 2674388259,10722885057,155747819547,19336668383673,667382013477,
%U 1019303306559,716912704223253,717162977859147,29411190301301847
%N Numerator of the probability that (2n+1)-dimensional Gaussian random triangle has an obtuse angle.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/GaussianTrianglePicking.html">Gaussian Triangle Picking</a>
%e 1 - (3*sqrt(3))/(4*Pi), 1 - (9*sqrt(3))/(8*Pi), 1 - (27*sqrt(3))/(20*Pi), ...
%Y Cf. A102556, A102557, A102559.
%K nonn,frac
%O 1,1
%A _Eric W. Weisstein_, Jan 14 2005