The intui tion solution. 15young ,this is ...

回答: 回复:FG=1?wxcfan1232011-08-12 06:46:13

           o1              o4'              o7 center,roting o4',o5',o6' 150 degree.

    o2    o5         o7              o6'    using this metuod can say the unique

           o3              o5'              (isomorphic) and say n<8.Ok not the best.

    o6           o4                          BTW,14A and 14B                              is possible,regular                                      hexagon,o7 inside o8 outside.

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