已知数列an满足 a1=0,an+1=根号3倍的an再加1 分之an-根号3,n属于n*则a20等于?

已知数列{an}满足a1=1 an+1=an/(3an+1) 则球an 已知数列an满足a1=1,1/an+1=根号1/an^2+2,an>0,求an 已知数列｛an｝满足a1=1,an+1 -an+2an+1•an=0求通项 已知数列{an}满足an+1=an+n,a1等于1,则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=1/2,(an+1-1)(an-1)-an+1+an=0求数列an的通项公式 已知数列an满足a1=0,an+1=an-根号3/根号3an+1,则a2012= 已知数列an满足a1=0 a2=1 an=(An-1+An-2)/2 求liman 已知数列an满足a1=0 a2=1 an=(An-1+An-2)/2 求liman 已知数列{an}满足,an+2=an+1-an,且a10=-1,a9=0,求a1 已知数列{an}中满足(An+1-An)(An+1+An)=16,且a1=1,an 已知数列满足a1=1/2,an+1=2an/(an+1),求a1,a2已知数列满足a1=1/2,a(n+1)=2an/(an+1),求a1,a2;证明0 数列[An]满足An+1-An+3=0,且A1=-5.求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 已知数列{an}满足a(n+1)=an+n,a1=1,则an= 已知数列满足a1=1 ,an+1+2an=2 求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