           1           2  0.989222693843690     
           2           3   1.67332271756848     
           2           4   1.15914358603376     
           3           4  0.136753449448506     
           4           5   1.03852246431491     
           5           6   1.37536069219585     
           6           7   1.45982216735926     
           7           8   1.36798290128551     
           8           9   1.09389828019149     
           9          10   2.82054625155196     
           6          11  0.102859260303468     
           8          11   1.36398749928596     
           5          12   1.36581081782173     
           7          12  0.102433010763724     
          11          12   1.46620860647361     
           1          13  0.980973665860906     
           1          14  0.978712971678350     
           1          15  0.964382099287030     
           4          16  0.916000305918696     
           6          17  0.962515917253177     
           7          18  0.973121252787037     
          11          19  0.973157054736294     
          12          20  0.971426593558117     
