Sn = 2Sn-1 + 4 and Qn = 4Qn-1 + 8 for all n > 1. If S5 = Q4 and S7 = 316, what is the first value of n for which Qn is an integer?
(A) 1
(B) 2
(C) 3
(D) 4
(E) 5
[spoiler]OA: C[/spoiler]
(A) 1
(B) 2
(C) 3
(D) 4
(E) 5
[spoiler]OA: C[/spoiler]
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