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# Summing of series Watch

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1. Hey could anyone shed light on how to find the sum of the following sequence?
1*n^2 + 2*(n-1)^2+...+n*1^2

Thanks
2. Try adding the series n^3 + (n-1)^3 + ... + 2^3 + 1^3 (whose sum is a standard result).
3. thanks
(Original post by DFranklin)
Try adding the series n^3 + (n-1)^3 + ... + 2^3 + 1^3 (whose sum is a standard result).
4. (Original post by TeeEm)
Write the series compactly in SIGMA notation.
Expand the summand
Then it is all standard results
Factorize at the end

just started the course, so i still am not quite sure how i would write this sequence in sigma notation
5. thank you so much
(Original post by TeeEm)
well I cannot give you any more explicit help than the one I gave you so far...
luckily this question appears in one of my future papers (not formatted yet) so here it is
Attachment 583702

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