A156803 Number of equivalence classes of bipartite graphs on n nodes up to sequences of edge local complementation and isomorphism.

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

Offset: 1

Author

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

Keywords

• hard
• nonn

Comments

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.

Links

• L. E. Danielsen and M. G. Parker, Edge local complementation and equivalence of binary linear codes, Des. Codes Cryptogr., 49 (2008), 161-170.
• L. E. Danielsen, Database of Pivot Orbits.

Crossrefs

A034343