Write the sum using summation notation, assuming the suggested pattern continues. 16 + 25 + 36 + 49 + ... + n2 + ...

We are given the series 16 + 25 + 36 + 49 + ... + n2 + ... and is asked in the problem to determine the sum using the summation notation. Technically, the sum is infinity since the difference between terms is increasing. The expression is detailed as

summation of (16 + 9+2n) where n is from 0 to infinity