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Number of equivalence classes of bipartite graphs on n nodes up to sequences of edge local complementation and isomorphism.
0

%I #1 Feb 27 2009 03:00:00

%S 1,2,3,6,10,22,43,104,250,720,2229,8361,36441,199610,1395326

%N Number of equivalence classes of bipartite graphs on n nodes up to sequences of edge local complementation and isomorphism.

%C Also equal to the number of inequivalent binary linear codes of length n plus the number of inequivalent isodual binary linear codes of length n, divided by two.

%H L. E. Danielsen and M. G. Parker, <a href="http://arxiv.org/abs/0710.2243">Edge local complementation and equivalence of binary linear codes</a>, Des. Codes Cryptogr., 49 (2008), 161-170.

%H L. E. Danielsen, <a href="http://www.ii.uib.no/~larsed/pivot/">Database of Pivot Orbits</a>.

%Y A034343

%K hard,nonn

%O 1,2

%A Lars Eirik Danielsen (larsed(AT)ii.uib.no), Feb 16 2009