SOLUTION: Find the sum to n terms of the series:2+10+30+65+130+...

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Question 996147: Find the sum to n terms of the series:2+10+30+65+130+...
Found 2 solutions by 1136877, meng:
Answer by 1136877(1)   (Show Source): You can put this solution on YOUR website!
138
Answer by meng(2)   (Show Source): You can put this solution on YOUR website!
277
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