设数列｛an}满足a1+3a2+3^2a3+······+3^(n-1)an=n/3,a∈N*.求数列{an}的通项

设数列｛an}满足a1+3a2+3^2a3+······+3^(n-1)an=n/3,a∈N*.（1）求数列{an}的通 设数列an满足a1+3a2+3^2a3+.+3^n-1an=n/3,n∈N*,求数列an的通项公式 设数列{an}满足a1+3 a2+3^2 a3+……+3^n-1 an=n/3,a属于N* 求数列{an}的通项 设 数列an满足a1=2,a(n+1)-an=3·2^(2n-1) (1)求数列an 的通项公式 设数列【an】满足a1=1,3（a1+a2+a3+······+an）=（n+2）an,求通项an 设数列｛an｝满足a1+3a2+3平方a3+...+3n-1an=n/3,n属于N*.求数列｛an｝的通项公式? 设数列an满足a1=a2=1,a3=2,且对正整数n都有an·an+1·an+2·an+3=an+an+1+an+2+a 设数列{an}满足a1+a2/2+a3/3+.+an/n=n^2-2n-2,求数列{an}的通项公式 设数列{an}满足a1+3a2+3^2a3+.3^n-1×an=n/3,a∈N+. 设数列{an}满足a1+3a2+3的平方a3+.+3的n-1次方an=n/3. （1）求数列{an}的通项. 设数列{An}满足A1+3A2+3²A3+…+3n-1An=3/n.(1)求数列{An}的通项. 设数列an满足a1+3a2+3²a3+…+3^n-1(an)=n/3,求数列an的通项公式