Вопрос:

Ответ:

\[a_{1} = 1 + 2 = 3,\ \ \]

\[a_{2} = 2 + 2 = 4,\ \ \]

\[a_{3} = 3 + 2 = 5,\ \ \]

\[a_{n} = 4 + 2 = 6.\]