%I A102598
%S A102598 1,2,7,102,5034,886456
%N A102598 Number of n-node unlabeled connected digraphs whose underlying graphs 
               are mating graphs, cf. A006024.
%Y A102598 Sequence in context: A102344 A087589 A002812 this_sequence A102747 A122524 
               A162634
%Y A102598 Adjacent sequences: A102595 A102596 A102597 this_sequence A102599 A102600 
               A102601
%K A102598 more,nonn
%O A102598 1,2
%A A102598 Goran Kilibarda, Zoran Maksimovic, Vladeta Jovovic (vladeta(AT)eunet.rs), 
               Jan 22 2005