Quote:
Originally Posted by Anthony
If you want to play around, here's an anydice. If you want to try adding dice up, change the output statement to something like "output 2d[ dexplode d6 ]"

Yep, that's the way to do it.
For the record, the infinite series is actually very managable: in every case it boils down to SUM(6^ni) where n is the number of dice and i goes from 1 to infinity. And that's the best known infinite series there is. And then you have another number in front I didn't figure out the pattern for, and you possibly have to cut out a few middle terms.
So yeah, use any dice.