已知数列{an}满足3(an+1)+an=4(n>=1),且a1=9,其前n项和为Sn,则满足不等式{Sn-n-6}

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=1/2,an+1=3an/an+3求证1/an为等差数列已知数列an满足 a1=1/2,an+1=3an/an+3求证1/an为等差数列 已知数列{an}满足a1=1,a2=3,an+2=3an+1-2an求an 已知数列{an}满足a1=1/2,an+1=3an+1,求数列{an}通项公式 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 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=4/3,且an+1=4（n+1）an/3an+n 已知数列an满足a1=1,an+1=3an+1,证明｛an+½｝是等比数列 已知数列{an}满足a1=1 ,an+1=3an+2的n+1次幂,求an 已知数列（an）满足a1=1.an+1=3an+2n-1,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=3,an+1.an-1=an,求a2013 已知数列an满足a1=1,a(n+1)=an/(3an+2),则an=? 已知数列{an}满足an＋1＝an＋3n＋2,且a1＝2,求an. 已知数列（an）满足an+1=2an+3×2∧n,a1=2求an 已知数列{an}满足an+1=an+n,a1等于1,则an=?