Try (as a start) $$\sum_{L=0}^{L_{\hbox{\tiny Org,max}}}{\left(\vcenter{\hbox{$\frac{\displaystyle \sum_{e=1}^{e=e_{\hbox{\tiny max}}}k_e}{\displaystyle(L+1)e_{\hbox{\tiny max}}}$}}\right)}$$ Mike