%I #3 May 10 2013 12:45:40
%S 1,2,7,102,5034,886456
%N Number of n-node unlabeled connected digraphs whose underlying graphs are mating graphs, cf. A006024.
%K more,nonn
%O 1,2
%A Goran Kilibarda, Zoran Maksimovic, _Vladeta Jovovic_, Jan 22 2005