已知数列{an}满足An+1=2^nAn,且A1=1,则通项an
已知数列{an}满足An+1=2^nAn,且A1=1,则通项an
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+
已知数列{an}满足a1=3,且an+1-3an=3n,(n∈N*),数列{bn}满足bn=3-nan.
已知数列{an}满足a1=1,且nan+1=(n+1)an(n∈N*),则数列an的通项公式是()
已知数列an满足an=1+2+...+n,且1/a1+1/a2+...+1/an
数列an满足a1+2a2+3a3+...+nan=(n+1)(n+2) 求通项an
已知数列(an)满足a1+2a2+3a3+...+nan=n(n+1)(n+2)求an
已知数列{An}满足:A1=1,An=nAn-1+(n-1)!(n>=2),求数列{An}的通项公式.
数列{an}满足a1=1,且an=an-1+3n-2,求an
已知数列{an}满足a1=1,a(n+1)=nan n+1是角标
已知数列{an}满足an+1=2an+3.5^n,a1=6.求an
已知数列{an}满足a1=1/4 , an=an-1/[(-1)nan-1-2] (n≥2,n∈N) (1)求通项公式a