Find-the-value-of-this-expression-1-2-2-1-3-2-2-2-4-2-3-3-2019-2-2018-2018-

Question Number 165383 by naka3546 last updated on 01/Feb/22

F i n d t h e v a l u e o f t h i s e x p r e s s i o n

(- 1) (2^{2} - 1) + \frac{(3^{2} - 2)}{2!} - \frac{(4^{2} - 3)}{3!} + \dots + \frac{(2019^{2} - 2018)}{2018!}