%0 Journal Article
%A Benoumhani, Moussa
%T The number of topologies on a finite set
%J Journal of integer sequences
%D 2006
%V 9
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JIS_2006__9_2_a6/
%G en
%F JIS_2006__9_2_a6