数列{an},a1=1,2a(n+1)=an +1,求通项an?
已知数列{an}满足,a1=2,a(n+1)=3根号an,求通项an
数列{an},a1=2,an+1(下标)=an下标+n+1 求通项an下标
设数列{an}中,a1=2,a(n+1)=an+n+1,求an
数列an中 a1=1 a(n+1)=2an\(an+2) 求数列通项公式an
数列{an}满足a1=1 an+1=2n+1an/an+2n
数列{an},a1=1,an+1=2an-n^2+3n,求{an}.
数列{an}中,a1=2,an+1=an+ln(n+1/n),求通项公式
若数列{An}满足A1=1,A(n+1)=An/(2An + 1)
数列{an},a1=1/2,a(n+1)=3an/(an)+3,
已知数列{an}满足a1=100,an+1-an=2n,则a
已知数列an中,a1=1,an+1=2an/an+2(n属于正整数),求通项公式an?
如果数列{an}中,a1=3,a(n+1)-2an=2an*a(n+1)(an不等于0),求通项公式an