SOLUTION: 5,2.,6,4,7,8,8,?,9

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Question 1108664: 5,2.,6,4,7,8,8,?,9
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
16


Why?
The even numbered indexed terms are doubling, beginning at n=2.
At index n=8, you finally reach 2%2A2%2A2%2A2=16.