若数列{an}满足:a1=1,an+1=2an.n=1,2,3….则a1+a2+…+an=______.
一直数列{An}满足A1=1/2,A1+A2+…+An=n^2An
已知数列{an}满足a1=1,a2=2,an+2=an+an+12,n∈N*.
数列{an}满足:1/a1+2/a2+3/a3+…+n/an=2n
数列{an}满足a1=3/2,an+1=an^2-an+1(n属于正整数),则m=1/a1+1/a2+……+1/a200
在数列{an}中,a1=1,a2=2,an=an-1-an-2(n∈N*,n≥3),则a2010=______.
若数列{an}满足a1+3a2+32a3+…+3n-1an=n+13(n∈N*),则an=___.
已知数列{An}满足A1=0.5,A1+A2+…+An=n^2An(n∈N*),试用数学归纳法证明:An=1/n(n+1
已知数列{an}满足:a1=3,an+1=(3an-2)/an ,n∈N*.(Ⅰ)证明数列{(an-1)/an-2
已知数列an满足an=1+2+...+n,且1/a1+1/a2+...+1/an
已知数列{an}满足a1=1,a2=3,an+2=3an+1-2an(n∈N*).
在数列{an}中,已知(a1+a2+…+an)/n=(2n-1)an
已知数列{an}满足a1=0,a2=1,an+2=3an+1-2an,则{an}的前n项和Sn=______.