数列{An}满足Sn=n^2An,若A1=1005,求An的表达式?

数列{An}满足Sn=n^2An,若A1=1005,求An的表达式? 数列an满足a1=1/3,Sn=n(2n-1)an,求an 已知数列{an}满足a1=1/2,sn=n^2an,求通项an 已知数列{an},满足a1=1/2,Sn=n²×an,求an 已知数列an满足a1=1/2 sn=n平方×an 求an 已知数列An满足 A1=1/2 Sn=N²An 求An 已知数列an满足a1=1 Sn=2an+n 求an 已知数列{an}满足:a1=3,an=Sn-1+2n,求数列an及sn 数列{an}满足a1=1/2,Sn=n^2an,求通项公式 已知数列an满足a1=1 ,Sn=(n+1)*an/2,求通项 的表达式. 数列an满足a1=2,an+1=2an+2^n,求an和sn 若数列an满足:a1=1,Sn-1=2an+Sn(n∈N+),求an前8项和S8 数列｛an｝满足a2＝3a1,Sn是数列｛an｝的前n项和,且有Sn+1+Sn+Sn-1=3n^2+2（n>=2） 若任意n属于N^*,an 数列a1=3,数列满足2an=Sn乘以S(n-1),求通项公式. 数列an满足a1+a2+a3+...+an=n^2,若bn=1/an(an+1),求bn的和sn 已知数列an的前n项和sn与通项an满足a1=2,sn+1sn=an+1,求sn 已知数列{an}中a1=1,且满足an+an-1不等于0,Sn=1/6*(an+1)(an+2).(1)求通项an,并说明{an}是什么数列(2)求数列{an}的前n项和Sn 已知数列{an}a1=2前n项和为Sn 且满足Sn Sn-1=3an 求数列{an}的通项公式an已知数列{an}a1=2前n项和为Sn 且满足Sn +Sn-1=3an 求数列{an}的通项公式an