数列﹛an﹜满足a1=1,a2=1/2,并且an(an-1+an+1)=2an+1an-1(n≥2),则数列﹛an﹜的第

一直数列{An}满足A1=1/2,A1+A2+…+An=n^2An 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 an+1=2n+1an/an+2n 数列{an}足a1=2，a2=1，并且an−1−anan•an−1＝an−an+1an•an+1(n≥2)，则数列{an 数列｛an｝满足a1=1,且an=an-1+3n-2,求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=2an/an+2(n∈N*) 求a2,a3,a4,a5 猜想数列(an)的通项公 已知数列{an}满足a1=1，a2=2，an+2=an+an+12，n∈N*． 若数列{An}满足An+1=An^2,则称数列{An}为“平方递推数列”,已知数列{an}中,a1=9,点（an,an+ 已知数列{an}满足:a1=1,且an-an-1=2n,求(1)a2,a3,a4.(2)求数列{an}的通项an 关于数列极限的已知数列an满足a1=0 a2=1 an=(an-1+an-2)/2 求lim(n->无穷）an 在数列{an}中,a1=1,a2=5,an+2=an+1-an (n∈N*),则a100等于( an+2=an+1-an