数列{an},a1=—1,an+1=n/[（3n+3）an+4n+6],求an的通项公式

数列{An}满足a1=1/2,a1+a2+..+an=n方an,求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=1,an+1/an=n/n+2,求an 设数列{an}中,a1=2,an+1=an+n+1,则通项an=? 已知数列{an}满足an+1=an+n,a1等于1,则an=? 数列{an}中,a1=35,an+1-an=2n-1,求an 已知数列an,a1=1 an+1-an=2的n次幂求an 数列｛an｝满足a1=1,且an=an-1+3n-2,求an 数列an集合中,a1=2,an+1=an+(2n+1),求an. 已知数列an中,a1=1,an+1=an+n,求an 数列{an},a1=2,an+1(下标)=an下标+n+1 求通项an下标 在数列an中,a1=2 an+1=an+3n则an= 数列an,a1=4,an+1=5^n*an,求an用累乘法 已知数列{an}满足an+1=2an+3.5^n,a1=6.求an 已知数列{An}中,a1=4,an+1+an=6n+3,求证数列an-3n是等比数列,求证数列an的通项an 已知数列{an}满足a(n+1)=an+n,a1=1,则an= 数列an满足a1=1/3,Sn=n(2n-1)an,求an