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Find the first four terms of the sequence given by the recursive rule u1 = 1, un = 2un–1 + 3 for n ≥ 2. Is 133 a term of this sequence?
Find the first four terms of the sequence given by the recursive rule s1 = 3, sn = sn–1 (sn–1 – 1) for n ≥ 2.
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