Real Sequence/Examples/(-1)^(n+1) over n

Examples of Real Sequence
The first few terms of the real sequence:


 * $S = \sequence {\dfrac {\paren {-1}^{n + 1} } n}$

are:
 * $1, -\dfrac 1 2, \dfrac 1 3, -\dfrac 1 4, \dotsc$