Table B14005 crosses employment status by educational enrollment status, but covers only persons 16-19.
If you want to look at a wider age range you could turn to the PUMS data set, depending on the geography of interest. I used PUMS data analysed on-line through the IPUMS USA website to estimate the number of disconnected youths are 16-24. You can also use PUMS data to further refine your analysis to look at just one sex or specific race and ethnicity groups.