B_{n 1}>1 a_{n+1}=a_n b_n a_{n 1}

请输入您的数学问题…… b_{n-1}>1 a_{n+1}=a_n b_n - a_{n-1}

问题

b_{n - 1} > 1 a_{n + 1} = a_{n} b_{n} - a_{n - 1}

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