Resumen
In this paper, we construct supersaturated designs for large numbers of two-level factors and 10?n?22 runs by augmenting k-circulant designs [Liu, Y., Dean, A.M., 2004. k-circulant supersaturated designs. Technometrics 46, 32–43] with interaction columns or by deleting columns from k-circulant designs. Most of the designs presented have Es2 efficiencies above 0.90 and they extend the range of efficient supersaturated designs available in the literature.