已知数列an中满足a1=1,an+1=2an+1又bn=an+1（1）求证bn是等差数列（2）求an的表达式

已知数列{an}中满足(An+1-An)(An+1+An)=16,且a1=1,an 已知数列{an}满足an+1=2an+3.5^n,a1=6.求an 已知数列{an}满足a1=1 an+1=an/(3an+1) 则球an 已知数列满足a1=1 ,an+1+2an=2 求an 已知数列an满足条件a1=-2 an+1=2an+1则a5 已知数列an满足an=1+2+...+n,且1/a1+1/a2+...+1/an 已知数列{an}满足a1=1,an+1·an=2^n 则s2012 已知数列{an}满足An+1=2^nAn,且A1=1,则通项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an+1=nan,a1=2,求an通项 已知数列an满足a1=1 Sn=2an+n 求an 已知数列an满足 a1=1/2,an+1=3an/an+3求证1/an为等差数列已知数列an满足 a1=1/2,an+1=3an/an+3求证1/an为等差数列 已知数列{An}满足A1=1,An+1=2An+2^n.求证数列An/2是等差数列 已知数列{an}满足a1=1/2,an+1=3an+1,求数列{an}通项公式 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