数列an满足a1=1,当n≥2时an²-(n+2)*an-1*an+2*n*an-1²=0 求通项公
数列an满足a1=1,当n≥2时an²-(n+2)*an-1*an+2*n*an-1²=0 求通项公
数列{an}满足a1=1 an+1=2n+1an/an+2n
已知数列{an},满足a1=1/2,Sn=n²×an,求an
已知数列an中满足a1=1且当n.=2时,2an*a*(n-1)+an-a(n-1)=0,求通项公式an
数列{an}满足a1=1,且an=an-1+3n-2,求an
已知数列{an}满足an+1=2an+3.5^n,a1=6.求an
数列{an}满足a1=1,an=3n+2an-1(n≥2)求an
设数列{an}满足an+1/an=n+2/n+1,且a1=2
已知数列{an}中,a1=1,满足an+1=an+2n,n属于N*,则an等于
一直数列{An}满足A1=1/2,A1+A2+…+An=n^2An
已知数列{an}满足 a1=3,an+1=an+3n²+3n+2-1\n(n+1),求an的通项公式
数列{an},a1=1,an+1=2an-n^2+3n,求{an}.