Summation

Hey, DragonLord...if you  send this  one  to heureka he might know how to fnd the  result mathematically...he's pretty good with this kind of thing.....

Alright, CPhill! Thanks for the advice!

I tried rewriting the bases as powers of three.

Then, I tried diving by three and multiplying the series by three

but it did not work.

27/27 looks very fishy, might be the key to the problem.

Sumfor(n, 1, 10000, (n^3 / 3^n)) = 33 / 8

I understand guest, but an answer to me is completely meaningless if there is no process or explanation on the way there.

As follows:

Thank you as well, Alan!