9 exact uncovered 0.7527460645500048  MC 0.7528846666666666
6 exact uncovered 0.9445807902406547  MC 0.944623
10 exact uncovered 0.7091438173303152  MC 0.7089616666666667
6 exact uncovered 0.6609436807159272  MC 0.6610733333333334
8 exact uncovered 0.6117342031337156  MC 0.6116900000000001
2 exact uncovered 0.731633675398779  MC 0.731874
lattice stress: min (6N'-2 - sum k) = 0
