数列{an}的前n项和为Sn,若a1=1,an+1=3Sn(n≥1),则a6=( )A.44B.44+1C.45D.3×4
数列{an}的前n项和为Sn,若a1=1,an+1=3Sn(n≥1),则a6=()A.44B.44+1C.45D.3×44...
数列{an}的前n项和为Sn,若a1=1,an+1=3Sn(n≥1),则a6=( )A.44B.44+1C.45D.3×44
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