Math
Level
pending
2,13,38,83,154,257, ?
What would replace the question mark. Hint :The above figure may help you if looks tough:
The answer is 398.
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1 solution
{ 1 3 + 1 2 + 1 } -1=2. SO IN GENERAL, { n 3 + n 2 + n }-1 Hence the answer is 398(n=7)