问问大佬,这个数列怎么求通项:
a1=1, an=2an−1+2n−2 (n≥2)a_1 = 1,\ a_n = 2a_{n - 1} + 2^{n-2}\ (n \ge 2)a1=1, an=2an−1+2n−2 (n≥2)