%0 Journal Article %A Gang Yu %T E-symmetric numbers %J Colloquium Mathematicum %D 2005 %P 17-25 %V 103 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm103-1-3/ %R 10.4064/cm103-1-3 %G en %F 10_4064_cm103_1_3