%I A052170
%S A052170 1,1,6,24,130,688,4211,26840,184153,1328155,10078617,79926478,
%T A052170 660616432,5671793248,50459837996,464139053799
%N A052170 Number of directed multigraphs with n arcs.
%Y A052170 Cf. A050535, A007717, A037240, A050930.
%Y A052170 Sequence in context: A047865 A060249 A052557 this_sequence A027224 A110707 
               A047712
%Y A052170 Adjacent sequences: A052167 A052168 A052169 this_sequence A052171 A052172 
               A052173
%K A052170 more,nonn
%O A052170 0,3
%A A052170 Vladeta Jovovic (vladeta(AT)eunet.rs), Jan 26 2000