%I A052789
%S A052789 0,1,10,225,8000,390625,24300000,1838265625,163840000000,
%T A052789 16815125390625,1953125000000000,253295162119140625,
%U A052789 36279705600000000000,5688009063105712890625,968890104070000000000000
%N A052789 A simple grammar.
%H A052789 INRIA Algorithms Project, <a href="http://algo.inria.fr/bin/encyclopedia?Search=ECSnb&argsearch=746">
               Encyclopedia of Combinatorial Structures 746</a>
%F A052789 E.g.f.: -1/5*LambertW(-5*x)
%p A052789 spec := [S,{B=Set(S),S=Prod(Z,B,B,B,B,B)},labeled]: seq(combstruct[count](spec,
               size=n), n=0..20);
%Y A052789 Sequence in context: A053131 A166181 A064333 this_sequence A092254 A004702 
               A027952
%Y A052789 Adjacent sequences: A052786 A052787 A052788 this_sequence A052790 A052791 
               A052792
%K A052789 easy,nonn
%O A052789 0,3
%A A052789 encyclopedia(AT)pommard.inria.fr, Jan 25 2000