．在数列{an}中，a1＝，且Sn＝n(2n－1)an.通过求a2，a3，a4，猜想an的表

．在数列{a_n}中，a₁＝，且S_n＝n(2n－1)a_n.通过求a₂，a₃，a₄，猜想a_n的表达式是________．

答案

a_n＝

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．在数列{an}中，a1＝，且Sn＝n(2n－1)an.通过求a2，a3，a4，猜想an的表

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