Recurrence Relationsmedium
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A recurrence relation an=4an14an2a_n = 4a_{n-1} - 4a_{n-2} has the general solution (c1+c2n)2n(c_1 + c_2 n) 2^n. If a0=1,a1=4a_0 = 1, a_1 = 4, what is c1c_1 and c2c_2?