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2, 9, 28, 65, 126, 217, ___?

A344

B343

C342

D356

Answer:

A. 344

Read Explanation:

1*1*1 +1=2 2*2*2+1=9 3*3*3+1=28 4*4*4+1=65 5*5*5+1=126 6*6*6+1=217 7*7*7+1=344


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