Logical Series
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Can you find a pattern and the missing number in the series given below?
100, 155, 258,? , 584, 819. 
Not sure how do we get 100, but for all other numbers, here’s the calculation:
155 = 5*5*5 + 5*5 + 5
258 = 6*6*6 + 6*6 + 6
399 = 7*7*7 + 7*7 + 7
584 = 8*8*8 + 8*8 + 8
819 = 9*9*9 + 9*9 + 9
if we consider, 4*4*4 + 4*4 + 4, we get 84 and NOT 100 as mentioned in the question.
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