For an=2an−1−2an−2a_n = 2a_{n-1} - 2a_{n-2}an=2an−1−2an−2 with a0=1,a1=2a_0 = 1, a_1 = 2a0=1,a1=2, compute a5a_5a5.
888
161616
000
−8-8−8