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A130756 Number of minimally strongly connected digraphs on n vertices, up to isomorphism. 1

%I #6 Feb 01 2014 21:39:34

%S 1,1,2,5,15,63,288,1526,8627,52021,328432,2160415

%N Number of minimally strongly connected digraphs on n vertices, up to isomorphism.

%C A graph is strongly connected if there exists a directed path from any vertex to any other and minimally strongly connected if removing any edge destroys this property.

%D Kiran Kumar Bhogadi, Decomposition and Generation of Minimal Strongly Connected Digraphs.

%Y Cf. A000055.

%K nonn

%O 1,3

%A _Jack W Grahl_, Jul 04 2007

%E More terms from _Vladeta Jovovic_, Jul 13 2007

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Last modified April 23 08:33 EDT 2024. Contains 371905 sequences. (Running on oeis4.)