\[b_{n} = 4n - 2\]
\[b_{1} = 4 - 2 = 2;\]
\[b_{60} = 240 - 2 = 238.\]
\[S_{60} = \frac{b_{1} + b_{60}}{2} \cdot 60 = 30 \cdot (2 + 238) =\]
\[= 30 \cdot 240 = 7200.\]
\[Ответ:7200.\]