Thread: Summation of k.k!

I'm trying to get a value for the summation of k.k! from k=1 to n in terms of a function of n.
So far I've been going in circles. I would appreciate a hint.
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Edit:
I found the answer - this site seems to act like a catalyst. Once I post something, I quickly solve it myself.
It's (k+1)!-1

Originally Posted by nahduma

I'm trying to get a value for the summation of k.k! from k=1 to n in terms of a function of n.
So far I've been going in circles. I would appreciate a hint.
---
Edit:
I found the answer - this site seems to act like a catalyst. Once I post something, I quickly solve it myself.
It's (k+1)!-1

That should be (n+1)!-1. (I imagine you that and it was just a typo but just in case...)