数列{an}(n≥2014,n∈n)满足:ai+a(i+1)+...+a(i+2012)0,j=1,2...,n-201
已知数列an满足a1=1,an-2a下标(n-1)-2*(n-1)=0,(n∈N*,n≥2)
设b>0,数列{an}满足:a[1]=b,a[n]=nba[n-1]/(a[n-1]+2n-2)(n≥2).
已知数集A={a1,a2,…,an}(1≤a1<a2<…an,n≥2)具有性质P;对任意的i,j(1≤i≤j≤n),ai
在数列{An}中,已知An+A(n+1)=2n (n∈N*)
在数列{an}中,已知a1=2,an+1=2an/[(an)+1],且满足∑(n,i=1)ai(ai-1)
已知数列{an}满足a1=1,an=2a下标(n-1)+2^n(n≥2,n∈N*) (1)求证数列{an/2^n}是等差
已知数列{an}满足a1=1,an=3^(n-1)+a(n-1)(n∈N*,n≥2),证明an=(3^n -1)/2满足
1.已知数列{An}满足A1=1,An= 2A(n-1)+2(n∈N,且N≥2)
已知数列{an}满足a1=1,an=logn(n+1)(n≥2,n∈N*).定义:使乘积a1?a2?a
设b>0,数列{an}满足a1=b ,an=nba n-1 / a n-1 +2n-2 (n≥2).
设数列{an}满足a1+3a2+3^2a3+.3^n-1×an=n/3,a∈N+.
①已知数列{an}满足a1=1,a(n-1)+1/1-an(n属于N*,n>1)