9ad07054_Dana_Jacobsen__blogs_perl_org__Combinations_and_Permutations_Module
[Impl] Perl [Comb] yes [Perm] yes [Comb w/rep] no [Perm w/rep] no [Derange] yes [Speed] - - [Order] Impl [Comments] Iterator or array [Module] 
Math::Combinatorics
Dana Jacobsen [blogs.perl.org]
Module