Sum

[FUGU]

Can somebody help me to solve this sum?
http://www5b.wolframalpha.com/Calcu...87aeig?MSPStoreType=image/gif&s=51&w=37.&h=47.

 

[pka]

Can somebody help me to solve this sum?
http://www5b.wolframalpha.com/Calcu...87aeig?MSPStoreType=image/gif&s=51&w=37.&h=47.

What do you mean by solve?
There is no equation there.

 

[Ishuda]

Do you mean: Solve for S(n) where
\(\displaystyle S(n) = \underset{k=1}{\overset{n}{\Sigma}}\, k^k\)

If so, I'm not sure there is a 'nice' answer.

 

[FUGU]

i mean is there a formula for this sum?

 

[stapel]

i mean is there a formula for this sum?

The summation is "a formula" (an expression) for the sum. Do you maybe mean "a closed form" expression for the sum, in terms only of "n"?