已知数列an满足,a1=1/2,a1+a2+a3+.+an=(n^2)an,通项公式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 已知数列{an}满足条件:a1=5,an=a1+a2+...a(n-1) n大于等于2,求数列{an}的通项公式 已知数列an满足条件a1=-2 a（n+1）=2an/(1-an) 则an= 已知数列an满足a1=1,a(n+1)=an/(3an+2),则an=? 已知数列{an}满足a(n+1)=an+n,a1=1,则an= 已知数列{an}满足a(n+1)=an+lg2,a1=1,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=2,a(n+1)-an=a(n+1）*an,则a31=? (1)数列{an}中,a1=1,a2=-3,a(n+1)=an+a(n+2),则a2005=____(2)已知数列｛an｝满足a1=1,a1×a2×a3…an=n^2,求an. 已知数列满足a1=2,a(n+1)=2an-1/an,证明1/an-1为等差 已知数列｛an｝满足a(n+1)=an+3n+2,且a1=2,求an=? 已知数列an满足a1=2,an=a(n-1)+2n,（n≥2）,求an 已知数列an满足:a1=1,an-a(n-1)=n n大于等于2 求an 已知数列{an}满足3a(n+1)=2an-4,且a1=1/5,求an 已知数列{an}满足a1=2,an=a(n+1)-2,求an及S10 已知数列an满足a(n+1)=an+3n+2,且a1=2,求an 已知数列{an}满足a1=33,a(n+1)-an=2n,则an/n的最小值 已知数列{an}满足a1=33,a（n+1）-an=2n,求an/n的最小值