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Recursionhard
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Which closed-form formula satisfies the recurrence an=3an−1−2an−2a_n = 3a_{n-1} - 2a_{n-2}an​=3an−1​−2an−2​ AND the initial conditions a0=0,a1=1a_0 = 0, a_1 = 1a0​=0,a1​=1?