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