a1=1/5,an+a(n+1)=6/(5^n+1),lim(a1+a2+...an )=?

a1=1/5,an+a(n+1)=6/(5^n+1),lim(a1+a2+...an )=? a1=1/5,an+a(n+1)=6/【5^(n+1)】lim(a1+a2+...an )=? 在数列{an},a1=1/5,an+a(n+1)=6/5^(n+1),n∈N+,则lim(a1+a2+...+an)的值为? 写出下列数列{an}的前5项 a1=1,a(n+1)=an+3 a1=2,a(n+1)=2an a1=3,a2=6,a(n+2)=a(n+1)-an 已知数列{an}满足a1=5,a(n+1)=an+6n+6,则an= a1=5,n大于等于2时,an-an-1=6n,求an a1=1,a(n+1)=6n-an,求an 数列an中,a1=6,且an-a(n-1)=a(n-1)/n+n+1,求通项公式 已知数列{An}中a1=1.且A(n+1)=6n*2^n-An.求通项公试An 数列an中 a1=0 a2=2 a（n+2）-6a（n+1）+5an=2^n 求通项an 数列{an}中a1=6 an+a(n-1)=9/an-a(n-1) +8问a70=? 已知数列{an}满足a(n+1)=an+n,a1=1,则an= 数列{an},a1=3,an*a(n+1)=(1/2)^n,求an 在数列｛an｝中,a1=3,a(n+1)=an+n,求an 已知数列｛an｝中,a(n+1)=an+2^n,a1=3,求an 数列{an}满足a1=2,a(n+1)=2an+n+2,求an 数列{an}中,a1=1/2,a(n+1)-5an=5^n,求an求解答过程 在数列{an}中 a1=1 a（n+1）+an=6n 求通项an