Find the first five terms of the sequence defined by each of these recurrence relations and initial conditions. (a) an = 5an−1, a0 = 2 (b) an = a 2 n−1 , a1 = 2 (c) an = 3an−1 + an−2, a0 = 1, a1 = 2 (d) an = nan−1 + a 2 n−2 , a0 = 1, a1 = 1 (e) an = an−1 − an−2 + an−3, a0 = 1, a1 = 2, a2 = 0.