设数列an满足a1+a2/2,a3/3……+an/n=(a^2n)-1,an的前n项和为Sn,求an和Sn

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设数列an满足a1+a2/2,a3/3……+an/n=(a^2n)-1,an的前n项和为Sn,求an和Sn设数列an满足a1+a2/2,a3/3……+an/n=(a^2n)-1,an的前n项和为Sn,

设数列an满足a1+a2/2,a3/3……+an/n=(a^2n)-1,an的前n项和为Sn,求an和Sn
设数列an满足a1+a2/2,a3/3……+an/n=(a^2n)-1,an的前n项和为Sn,求an和Sn

设数列an满足a1+a2/2,a3/3……+an/n=(a^2n)-1,an的前n项和为Sn,求an和Sn
下次把题目打上去以后在检查一下,a2/2,a3/3之间应该是+号吧!
设数列bn=an/n,bn的前n项和为Sbn=(a^2n)-1
bn=Sbn-Sb(n-1)=a^2n-a^2(n-1)=an/n,
an=[a^2n-a^2(n-1)]/n,
接下来自己做,题目有没有抄错我都不知道.

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