Question

Братишки,помогите пожалуйста!!​

Answer 1

0) s = 0

n = 1) 0 + 1 * 1 = 1

n = 2) 1 + 2 * 2 = 1 + 4 = 5

n = 3) 5 + 3 * 3 = 5 + 9 = 14

s = 14