数列{an},a1=1/2,a(n+1)=3an/(an)+3,

数列｛an},a1=1,an+1=2an-n^2+3n,求｛an｝. 数列{an},a1=1/2,a(n+1)=3an/(an)+3, 已知数列{an}满足,a1=2,a(n+1)=3根号an,求通项an 数列｛an｝满足a1=1,且an=an-1+3n-2,求an 在数列an中,a1=2 an+1=an+3n则an= 数列{an},a1=1,a(n+1)=2an-n^2+3n 19.一直数列An,A1=m,A(n+1)=2An+3^(n+1). 数列A(n+1)=2An+2n-3,A1=2,求An 设数列{an},a1=3,a(n+1)=3an -2 (1)求证:数列{an-1}为等比数列 数列{An},A1=1,A(n+1)=3An+4.求An和Sn. 设数列{an},a1=3,an+1=3an-2（n∈N*） 已知数列{an}满足a1=1,2a（n+1)an+3a(n+1)+an+2=0.