\[\boxed{\mathbf{840\ (840).\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[b_{1} = 0,5;\ \ \ \ \ \ \ b_{6} = 16\]
\[b_{6} = b_{1} \cdot q^{5}\ \]
\[q^{5} = \frac{b_{6}}{b_{1}} = \frac{16}{0,5} = 32 \Longrightarrow \ \ q = 2\]
\[b_{2} = 0,5 \cdot 2 = 1;\ \ b_{3} = 1 \cdot 2 = 2;\ \]
\[\ b_{4} = 2 \cdot 2 = 4;\ \ b_{5} = 4 \cdot 2 = 8\]
\[Ответ:1;2;4;8.\]