若数列an满足:a1=1,Sn-1=2an+Sn(n∈N+),求an前8项和S8

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=1/3,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 数列{an}满足Sn+Sn+1=5/3an+1,a1=4求an 数列a1=3,数列满足2an=Sn乘以S(n-1),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=1/2,Sn=n^2an,求通项公式 已知数列｛an｝满足a1=1,a（n+1）=sn+（n+1）求：an和sn 【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前...【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前n项和Tn 数列an满足a（n-1）-an=1/2,a1=1/2,sn是数列an的前n项和,则S100=? 已知数列{an}满足a1=1,a(n+1)an=2^n,Sn是数列{an}的前n项和,S2012是多少? 已知数列{an}满足a1=1,a(n+1)an=2^n,Sn是数列{an}的前n项和,S2012是多少? 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 超难数列题哦已知数列{an}的前n项和为Sn,且数列{an}满足Sn=1/2a(n-1)首项a1=1,求数列{an}通项公式