设数列{an}中,a1=2,an+1=an+n+1,则通项an=______.
设数列{an}中,a1=2,an+1=an+n+1,则通项an=?
设数列{an}中,a1=2,a(n+1)=an+n+1,求an
设数列{An}中,A1=2,An+1=An+2n+1,则通项公式An=
在数列{an}中,a1=2,an+1=an+2n,则an=______.
数列{an}中,a1=1,an+1=3an+2,则通项an=______.
在数列an中,a1=2 an+1=an+3n则an=
数列{an}中,a1=35,an+1-an=2n-1,求an
设数列{an}满足:a1=1,an+1=3an,n∈N+.
设数列{an},a1=3,an+1=3an-2(n∈N*)
设数列{an}满足an+1/an=n+2/n+1,且a1=2
在数列{an}中,a1=1,a2=2,an=an-1-an-2(n∈N*,n≥3),则a2010=______.
数列{an}中a1=1,对于n>1(n∈N*)有an=3an-1+2,则an=______.