%I A052796
%S A052796 0,0,0,0,24,240,1440,6720,26880,96768,322560,1013760,3041280,8785920,
%T A052796 24600576,67092480,178913280,467927040,1203240960,3048210432,
%U A052796 7620526080
%N A052796 E.g.f.: x^4*exp(x)^2.
%H A052796 INRIA Algorithms Project, <a href="http://algo.inria.fr/bin/encyclopedia?Search=ECSnb&argsearch=753">
               Encyclopedia of Combinatorial Structures 753</a>
%F A052796 Recurrence: {a(1)=0, a(2)=0, a(3)=0, a(4)=24, (-2*n-2)*a(n)+(n-3)*a(n+1)}
%F A052796 O.g.f.:-24*x^4/(2*x-1)^5 [From Maksym Voznyy (voznyy(AT)mail.ru), Aug 
               12 2009]
%p A052796 spec := [S,{B=Set(Z),S=Prod(Z,Z,Z,Z,B,B)},labeled]: seq(combstruct[count](spec,
               size=n), n=0..20);
%Y A052796 Equals A090802(n, 4).
%Y A052796 Sequence in context: A006863 A052663 A167548 this_sequence A056269 A000919 
               A014340
%Y A052796 Adjacent sequences: A052793 A052794 A052795 this_sequence A052797 A052798 
               A052799
%K A052796 easy,nonn
%O A052796 0,5
%A A052796 encyclopedia(AT)pommard.inria.fr, Jan 25 2000