若数列an满足 a1=2011,a2=2012,且An+2=(An+1 +1)/An ,求a2012=?
【高中数学数列】已知数列an满足a1=1,a2=2,且an=an-1/an-2 (n大于等于3)则a2012=?
已知数列an满足an=1+2+...+n,且1/a1+1/a2+...+1/an
数列{an}满足a1=1,且an=an-1+3n-2,求an
已知数列{an}满足:a1=1,且an-an-1=2n,求(1)a2,a3,a4.(2)求数列{an}的通项an
已知数列{an}满足a1=1,a2=3,an+2=3an+1-2an求an
已知数列{an}中,a1=3,a2=6,且An+2=An+1.那么A2012=?
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=1,且an-a(n-1)=2n.求a2,a3,a4.求数列{an}通项an
已知数列an与根号3倍an+1均是等比数列,且a1=2,求a2012的值
一直数列{An}满足A1=1/2,A1+A2+…+An=n^2An
已知数列{An}满足(n+1)an-nan+1=2,且a1=3.求an的通项公式,(2),求和:(a1+a2)+(a2+
在数列{an}中an=( 1)n(2n+1),则a1+a2+a3+a2012等于