medium · GMAT Quant
A sequence is defined by a_1 = 3 and a_n = 2a_n-1 - 1 for all integers n > 1.
What are the values of a_3 and a_5?
- a_3 = 9, a_5 = 33
- a_3 = 11, a_5 = 43
- a_3 = 5, a_5 = 17
- a_3 = 9, a_5 = 17
- a_3 = 7, a_5 = 31
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