已知数列｛an｝满足a1=4/3,且an+1=〔4(n+1)an〕/(3an+n) (n∈N*)已知数列｛an｝满足a1=4/3,且an+1=〔4(n+1)an〕/(3an+n)(n∈N*).（1）求1/a1+2/a2+…+n/an的值；（2）求证：a1+a2/2+a3/3+…+an/n≤ n+ 7/12-(1/4)^n

已知数列｛an｝满足a1=4/3,且an+1=4（n+1）an/3an+n 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,a(n+1)=3根号an,求通项an数列{an}满足:an>0,且根号下Sn=an+1/4,求通项an 已知数列[an]满足An+1=1+an /3-an ,且a1=1/3,求证数列[1/(an -1）]是等差数列,并求an 已知数列{an}满足a1=1 an+1=an/(3an+1) 则球an 已知数列{an}满足3an+1+an=4,a1=9,求通项公式. 已知数列{an}中满足(An+1-An)(An+1+An)=16,且a1=1,an 数列[An]满足An+1-An+3=0,且A1=-5.求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=2^nAn,且A1=1,则通项an 已知数列{an}满足：an+1=an+n,且a61=2002,则a1等于 已知数列｛an｝满足an=an+1 -lg2,且a1=1,则通项公式为? 已知数列an满足an=4a(n-1)+3n-4,且a1=3,证明数列an+n为等比数列 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a(n+1)=an+3n+2,且a1=2,求an=? 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=4,3an=5an(n下-1) +1,求an 已知数列an满足a1=1,a2=2,且an+2=4an+1-3an注an+2=4an+1-3an,an+2不是an加2 是n+2求证：数列an+1-an为等比数列求数列an的通项公式