数列{an}满足a1=1,an=3n+2an-1(n≥2)求an
数列{an}满足a1=1,且an=an-1+3n-2,求an
数列{an}满足a1=1,an=3n+2an-1(n≥2)求an
已知数列{an}满足an+1=2an+3.5^n,a1=6.求an
数列{an},a1=1,an+1=2an-n^2+3n,求{an}.
数列{an}满足a1=1 an+1=2n+1an/an+2n
已知数列{an}满足a1=1,an=(an-1)/3an-1+1,(n>=2,n属于N*),求数列{an}的通项公式
数列an满足an+1-an=3*2^2n-1 a1=2 求an通项
已知数列(an)满足an+1=2an+3×2∧n,a1=2求an
已知数列an满足a1=1/2 sn=n平方×an 求an
已知数列{an},满足a1=1/2,Sn=n²×an,求an
已知数列{an}满足a1=1/2,an+1=an+1/n的平方+n求an
已知数列{an}满足a1=33,an+1-an=2n 则求an/n?