已知数列an满足a1=a,an=an+1+2.定义数bn,bn=1/an n为正数 若4﹤a﹤6,则已知数列an满足a1=a,an=an+1+2.定义数bn,bn=1/an n为正数若4﹤a﹤6,则数列bn最大项的项数为

已知数列{an}满足a1=1 an+1=an/(3an+1) 则球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=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,a(n+1)=an/(3an+2),则an=? 已知数列an满足条件a1=-2 a（n+1）=2an/(1-an) 则an= 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=1,a(n+1)=an/(3an+1) 求数列通项公式 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=1,3a(n+1)+an-7 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=1,1/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a1=2,an+1-an=an+1*an,那么a31等于 已知数列{an}满足a1=2,an+1=2an/an+2,则an等于多少 已知数列｛An｝满足a1=1,a（n+1）=2an+1 求证数列{an+1}是等比数列 求数列｛an｝通式 数列题,求通项已知数列｛An}满足A=2An/(1-An),A1=2,求数列｛An}的通项公式