Integrated spectra in the range » (3600-3800) Å for a sample of 17 blue concentrated Large Magellanic Cloud (LMC) clusters are presented. These spectra are used to determine cluster ages and to explore the LMC structure and cluster formation history, in connection with their spatial distribution. Cluster reddening values are estimated using the available extinction maps. Cluster ages are derived from the independent template matching and equivalent width (EW) methods. The latter includes the use of the age/metallicity calibrations and diagnostic diagrams involving the sum of EWs of selected spectral lines. The cluster ages derived from both methods show in general good agreement and range from 40 Myr to 300 Myr. Combining the present sample with additional ones obtained under similar conditions, it is found that cluster deprojected distances from the LMC center are related to age in the sense that inner clusters tend to be younger. The present cluster sample complements previous ones, in an effort to gather a spectral library with several clusters per age bin.
