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The given series is 2, 12, 36, 80, 150...

If you clearly observe the series, you will find that the n-th number is n^{2} + n^{3}.

- Initialise the number N.
- Use the series formula to compute the n-th term.
- Print the result.

Following is the implementation of the above algorithm in C++

#include <bits/stdc++.h> using namespace std; int getNthTerm(int n) { return (n * n) + (n * n * n); } int main() { int n = 7; cout << getNthTerm(n) << endl; return 0; }

If you run the above code, then you will get the following result.

392

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