Let \(a_{1},a_{2},a_{3},\ldots.,a_{n}\) be an arithmetic progression with \(a_{1} = 3\) and \(S_{p} = \sum_{i = 1}^{p}\mspace{2mu} a_{i},1 \leq p \leq 100\). For any integer \(n\) with \(1 \leq n \leq 20\). Let \(m = 5n\). If \(\frac{S_{m}}{S_{n}}\) does not depend on\\ \(n\), then \(a_{2}\) is \(n\), then \(a_{2}\) is