若数列an满足a1=1.a2=2,an=an-1/an-2,求a2004我知道是6个一循环的数列但不懂a0=a2004?为啥?为啥不是a1=a2004?

数列{An}满足a1=1/2,a1+a2+..+an=n方an,求an 若数列{an}满足a1=1,a2=5且an+2=an+1-an,求a2000 数列an满足a1=1,a2=1/3,并且an(an-1+an+1)=2an+1an-1.则数列第2012项为? 已知数列an满足an=1+2+...+n,且1/a1+1/a2+...+1/an 数列an满足a1=1/2,a1+a2+a3……an=n^2an,则an 已知数列{an}满足：a1+a2+a3+.+an=n^2,求数列{an}的通项an. 已知数列{an}满足a1=1,a2=3,an+2=3an+1-2an求an 若数列an满足,a1+a2+a3+.+an=3n-2求 an的通项公式 已知数列{an}满足a1+a2+...+an=n²an求其通项an 2个数列题~~!1.数列{an}中,若a1=1/2,a1+a2+...+an=nan,求an=? 2.数列{an}中,若a1=1,a1+2a2+...+nan=an,求an=? 若数列{an}满足对任意n∈N﹡,a1+a2+.+an=2n次方-1,则a1²+a2²+.+an²=多少? 已知数列an'满足a1=1/2,a1+a2+a3+...+an=n^2an,求通项公式 设数列AN满足A1等于1,3(A1+a2+~+AN)=(n+2)an,求通向公式 若数列｛an｝满足：a1=1,an+1=2an,n=1,2,3….则a1+a2+…+an=______. 若数列｛an｝满足a1=1,an+1=2an,n=1,2,3,……,则a1+a2+……+an=____________ 已知数列{An}满足a1=1,An+1=2An+1.求A1+A2+A3+…+An的值 已知数列an满足a1=1,a2=3,an+1.an-1=an,求a2013 已知数列an满足a1=0 a2=1 an=(An-1+An-2)/2 求liman