数列｛an｝满足a1=3,a n+1=2an,则a4等于

数列[An]满足a1=2,a（n+1）=3an-2 求an 数列｛an｝满足a1=3,a n+1=2an,则a4等于 数列{an}满足a1=2,a(n+1)=2an+n+2,求an 数列{An}满足A1=1,A(n+3)=An+3,A（n+2)=An +2 已知数列｛an｝满足a(n+1)=an+3n+2,且a1=2,求an=? 在数列an中,a1=1,且满足a（n+1）=3an +2n,求an 已知数列an满足a(n+1)=an+3n+2,且a1=2,求an 已知数列an满足a1=1,a(n+1)=an/(3an+2),则an=? 已知数列{an}满足条件a1=3,且a( n+1)-an=(20)^n+n,求通项公式已知数列{an}满足条件a1=3,且a( n+1)-an=(2)^n+n,求通项公式 数列an满足a1=1/3,Sn=n(2n-1)an,求an 数列an满足a1=1,a(n+1)=an/[(2an)+1],求a2010 数列｛an｝满足a1=1,且an=an-1+3n-2,求an 设数列an满足a1=2,a(n+1)=3an+2^(n-1),求an2,设数列an满足a1=2,a(n+1)=3an+2n,求an 已知数列{an}满足a1=1,a2=3,a(n+2)=a(n+1)-an,求S2012 数列{An}满足a1=1/2,a1+a2+..+an=n方an,求an (1)数列{an}中,a1=1,a2=-3,a(n+1)=an+a(n+2),则a2005=____(2)已知数列｛an｝满足a1=1,a1×a2×a3…an=n^2,求an. 已知数列{an}满足3a(n+1)=2an-4,且a1=1/5,求an 已知数列{an}满足：a1=1,an=a1+2a2+3a3+``````+(n-1)a(n-1)(n大于等于2）,则通项公式an是什么?