Help! Calculate the closure of a set. Topology questions involving limit points

Hi

I want to find the closure of the following set:

{ (-1)^n (1- (1/n^2) } n going from 1 to infinity **


So the closure is the union of the set with the limit points

I think the limit points may be +1 and -1

So would the closure be the set ** union with the points +1 and -1 ?

Thanks!