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The sum of the series 1^(2)+1+2^(2)+2+3^...

The sum of the series `1^(2)+1+2^(2)+2+3^(2)+3+ . . . . .. +n^(n)+n`, is

A

`(n(n +1)(n+2))/(3)`

B

`(n(n+1) (3n +1))/(2)`

C

`(n(2n+1)(3n +1))/(6)`

D

`[(n( +1))/(3)]^(2)`

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AAKASH INSTITUTE-SEQUENCES AND SERIES -Assignment (SECTION - A) One option is correct
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