已知数列(an)满足a1>0,(an+1)/an=1/2(n为正整数),则数列{an}是____数列(递增
已知:等差数列,满足an+an+1+an+2=4则该数列为递增数列
若数列{An}满足An+1=An^2,则称数列{An}为“平方递推数列”,已知数列{an}中,a1=9,点(an,an+
已知数列{an}满足a1=1,an+1=2an/(an+2)(n∈N+),则数列{an}的通项公式为
已知数列{an}满足2an/an+2=an+1(n属于正整数),a1=1/1006.求证:数列{1/an}是等差数列,并
已知数列{an}满足an+an+1=2n+1(n∈N*),求证:数列{an}为等差数列的充要条件是a1=1.
已知数列{an}中,a1=3,an+1-2an=0,数列{bn}中,bn*an=(-1)^n (n是正整数) (1)求数
已知数列{An}满足A1=1,An+1=2An+2^n.求证数列An/2是等差数列
已知数列an满足a1=1,an+1=2an+1(n∈正整数) (1)求数列an的通项公式
已知数列{an}满足a1=2,an+1-an+1=0(n∈N+),则此数列的通项an等于( )
已知数列{an}满足a1=0,an+1=(an-根号3)/(根号3an+1) (n属于N+),则该数列中a20=____
已知数列{an},如果数列{bn}满足b1=a1,bn=an+a(n-1)则称数列{bn}是数列{an}的生成数列
已知:数列{an}满足a1=16,an+1-an=2n,则ann的最小值为( )