On 1/1/07, Michel Van den Bergh <michel.vandenbergh at uhasselt.be> wrote:
>
> > (%i4) sum(n/(3*n+1)/(2*n+1)^2, n, 1, inf)$
> > (%i5) closed_form(%), ratsimp;
> > (%o5)
> > -(12*sqrt(3)*log(3)-16*sqrt(3)*log(2)-sqrt(3)*%pi^2+4*%pi)/(8*sqrt(3))
>
> I included this very nice example in the demonstration script for levin
> (www.bertold.org/levin).
By the way, I've committed the levin files to cvs in
maxima/share/contrib/levin/.
Many thanks to Michel for this contribution.
best,
Robert