a1=2,a(n+1)(角标)=an+3n,求an
a1=1,a(n+1)(角标)=3an+2,求an
在数列an中,a1=1,且满足a(n+1)=3an +2n,求an
已知数列an,a1=2,且a(n+1)=2an+3n,求an
已知数列 an 中,a1=1,3an*a(n-1)+an-a(n-1)=0(n大于等于2) 求an通项
已知数列{an}满足a1=33,a(n+1)-an=2n,求an/n的最小值
设数列{an}中,a1=1且(2n+1)an=(2n-3)a(n-1),(n大于等于2),求{an},sn
已知A1=1,An=2An-1+n(n>1),求An.
设数列{an},a1=2,a(n+1)=an+In·(1+1/n),求an
数列{an},a1=1,an+1=2an-n^2+3n,求{an}.
已知在数列{an}中,a1=2,an=3a[(n-1)](下标)-2,求an
数列a1=2,a(n+1)=4an-3n+1,求{an}通项公式
数列an,a1=1,a(n+1)=an/(2an+1),求通向an