           1           2   1.3618442817506791     
           2           3   1.4804998223114625     
           3           4   1.3633506303655560     
           4           5   1.3618442817506942     
           1           6   1.3633506303655714     
           5           6   1.4804998223114492     
           2           7  0.96834715384399817     
           3           8  0.96565924020327587     
           5           9  0.96834715384399828     
           6          10  0.96565924020327498     
           4          11   1.0975252138981133     
          11          12   1.8933920576744883     
          11          13  0.96452159989505204     
          12          14  0.97844446508557725     
          12          15  0.97289299926287787     
           1          16   1.0975252138981109     
          16          17   1.8933920576744900     
          16          18  0.96452159989505182     
          17          19  0.97844446508557614     
          17          20  0.97289299926287764     
