数列{an}满足Sn=2n-an(n∈N*).
数列{an}满足Sn=2n-an(n∈N*).
数列{an}满足sn=2n-an(n∈N*)
已知数列{an}满足an+1=2an+n+1(n∈N*).
数列{an}的前n项和Sn满足:Sn=2an-3n(n属于N*)
数列{an}的前n项为Sn,Sn=2an-3n(n∈N*).
数列{an}的前n项和Sn满足:Sn =2an-3n(n∈N*) 1.证明{an+3}是等比数列
设数列{an}的前n项和为Sn,且满足an=2-Sn(n∈N*).
设数列{an}前n项和为Sn,数列{Sn}的前n项和为Tn,满足Tn=2Sn-n2,n∈N*.
已知数列{an}的各项均为正数,前n项和为Sn,且满足2Sn=an2+n-4(n∈N*).
已知数列{an}的前n项和Sn满足Sn=2an+(-1)n(n∈N*)
数列{an}的前n项和记作Sn,满足 Sn=2an+3n-12(n∈N*)
数列{An}满足An=(2^n)*(n^2),求前n项和Sn