3/2, 3, 6
6, 3, 3/2
3/2, 3, 1/3
2/3, 3, 8/3
3/2, 0, 6
Correct answer is B
When n = 1, n = 2, n = 3
3 x 22 - 1 = 6
3 x 22 - 2 = 3
3 x 22 - 3 = 3/2
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