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%I #17 Aug 05 2023 22:32:43
%S 1,1,5,17,83,394,2278,13949,93898,670003,5059914,40033149,330555726,
%T 2836763749,25233047351,232080785282,2202802051834,21539083861802,
%U 216638327167235,2238260395921444,23725940481578999
%N Number of directed multigraphs without loops containing n edges and an infinite number of vertices modulo isomorphism and reversal of all edge directions.
%Y Cf. A364088 (with loops).
%K nonn
%O 0,3
%A _Saibal Mitra_, Jul 07 2023