- #1

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## Homework Statement

Which terms of this sequence add up to 1010100? (Don't need to be consecutive terms)

{a

_{n}}

^{∞}

_{n=1}= {n(n+1)/2}

^{∞}

_{n=1}

## Homework Equations

## The Attempt at a Solution

The sequence is made up of the sums of all the numbers less than and including

*n*. Don't really know much more than that.