已知数列{an}满足a1=1,an+an+1=(13)n(n∈N*),Sn=a1+3?a2+32?a3+…+3n-1?an,则4Sn-3nan=______
已知数列{an}满足a1=1,an+an+1=(13)n(n∈N*),Sn=a1+3?a2+32?a3+…+3n-1?an,则4Sn-3nan=______....
已知数列{an}满足a1=1,an+an+1=(13)n(n∈N*),Sn=a1+3?a2+32?a3+…+3n-1?an,则4Sn-3nan=______.
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