1)A1=1,An+1=3An—5*3^n ,则An=?
在数列an中,a1=2 an+1=an+3n则an=
数列{an},a1=1,an+1=2an-n^2+3n,求{an}.
设数列{an},a1=3,an+1=3an-2(n∈N*)
数列{an}满足a1=1,且an=an-1+3n-2,求an
数列an中,a1=3,an+1=an/2an+1,则an=?
已知数列{An}满足:A1=3 ,An+1=(3An-2)/An,n属于N*.1)证明:数列{(An--1)/(An--
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
数列an,a1=4,Sn+S(n+1)=5/3an+1,an
在数列{an}中,a1=1,a2=5,an+2=an+1-an (n∈N*),则a100等于( an+2=an+1-an
在数列{an}中,a1=1,an+1=2an+3~n,求an.为次方)
已知数列(an)满足an+1=2an+3×2∧n,a1=2求an
设数列{an}满足:a1=1,an+1=3an,n∈N+.