  10   7   4   2  -1.000000000000000   1.732050807568877
  11   7   2   4  -1.000000000000000   1.732050807568877
  12   7   4   2  -1.000000000000000  -1.732050807568877
  13   7   2   4  -1.000000000000000  -1.732050807568877
