$$\sum_{i=0}^k 2^{n/{2^i}}$$
I'm trying to find an actual sum of this little nice sum , but I think that there's a problem
with it being a geometric series .
I'd appreciate any help
Regards
$$\sum_{i=0}^k 2^{n/{2^i}}$$
I'm trying to find an actual sum of this little nice sum , but I think that there's a problem
with it being a geometric series .
I'd appreciate any help
Regards