1,8,27,( ),125,( ) 1/2,1/6,1/12,( ),( )1,8,27,( ),125,( )1/2,1/6,1/12,( ),( ),1/42,( )按规律写数

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1,8,27,( ),125,( ) 1/2,1/6,1/12,( ),( )1,8,27,( ),125,( )1/2,1/6,1/12,( ),( ),1/42,( )按规律写数
1,8,27,( ),125,( ) 1/2,1/6,1/12,( ),( )
1,8,27,( ),125,( )
1/2,1/6,1/12,( ),( ),1/42,( )
按规律写数

1,8,27,( ),125,( ) 1/2,1/6,1/12,( ),( )1,8,27,( ),125,( )1/2,1/6,1/12,( ),( ),1/42,( )按规律写数
第二个是
1/20 1/30 1/56