N 3 2n 2 9n 18 0 July 8, 2019 16 32 64 128 ((2n)/(3 + n) + 9/(n ^ 2 - 3n + 9) - (n ^ 3 - 15n ^ 2)/(n ^ 3 + 27))(n + 3 - (9n)/(n + 3)) / (n + 3) N2 = −18 − 9n (18 ^ n)/(3 ^ (2n - 1) * 2 ^ (n - 2))
