A regular string of numbers: 1, - 2,3, - 4,5, - 6 What formula can be used to express each of his terms? (algebraic formula)?

A regular string of numbers: 1, - 2,3, - 4,5, - 6 What formula can be used to express each of his terms? (algebraic formula)?

N times (- 1) to the power of (n + 1) (n is a positive integer)