已知数列满足:a1=1,a(n+1)=an/(an+2),若b(n+1)=(n-a)(1/an+1),b1=-a,且数列｛bn｝是单调递增数列求实数a的取值范围

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-a(n-1)=n-1,求其通项 已知数列｛an｝满足a1=1,a（n+1）=nan n+1是角标 已知数列{a n}满足a n+1+3a n=0,且a1=3,则通项公式是? 等差数列、等比数列1、数列{a n}中,a1=1,当n≥2,其前n项和S n满足(S n)^2=a n (S n -1/2),求数列{a n}2、已知数列{a n}满足a1=1/2,a1+a2+a3+……+a n=n^2 a,求数列{a n}的通项公式2、已知数列{a n}满足a1=1/2，a1+a2+ 已知数列{a}满足a1=1/2,a（n+1）=an+1/(n^2+n),求an已知数列{a}满足a1=1/2,a（n+1）=an+1/(n^2+n),求an 已知数列{an}满足a(n+1)=an+lg2,a1=1,求an 已知数列{an}满足a1=1,3a(n+1)+an-7 14.已知数列满足a1+3a2+3^2a3+.+3^(n-1)a(n),则通项公式a(n)= 已知数列{an}满足a1=a,a2=b,a(n+1)=a(n+2)+an,求a2012 已知数列{an}满足条件a1=3,且a( n+1)-an=(20)^n+n,求通项公式已知数列{an}满足条件a1=3,且a( n+1)-an=(2)^n+n,求通项公式 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=2,a(n+1)-an=a(n+1）*an,则a31=? 已知数列{an}满足a(n+2)=a(n+1)-an,a1=1,a2=2,求a2005 已知数列{an}满足a1=1,a2=3,a(n+2)=a(n+1)-an,求S2012 已知数列{an}满足,a1=1,a2=2,a(n+1)=a(n+2)+an,求a2011? 已知数列{An}满足A1=1,A(n+1)=6A(n)+1,求{An}通项公式 已知数列an满足:a1=1,an-a(n-1)=n n大于等于2 求an