A156800 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A156800

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

0

1, 1, 2, 4, 10, 35, 134, 777, 6702, 104825, 3370317, 231557290

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

LINKS

Table of n, a(n) for n=1..12.

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

Sequence in context: A343158 A189591 A189598 * A210772 A125859 A103854

Adjacent sequences: A156797 A156798 A156799 * A156801 A156802 A156803

KEYWORD

hard,nonn

AUTHOR

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

STATUS

approved