medium · GMAT Quant
A factory output growth parameter k_n is defined by k_1 = 1, k_2 = 7, and k_n = k_n-1 + 3k_n-2 for all integers n ≥ 3.
What is the value of k_5?
- 31
- 41
- 61
- 103
- 154
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