A123428 Duplicate of A005975.

1, 2, 4, 10, 27, 92, 369, 1807, 10344, 67659

Offset

1,2

Comments

Previous name was: Number of interval perfect graphs on n nodes.

Is this the same as A005975? - R. J. Mathar, Jun 18 2008

All interval graphs are perfect, so this is indeed the same as A005975. - Eric M. Schmidt, Mar 07 2014

References

S. Hougardy, Classes of perfect graphs, Discr. Math. 306 (2006), 2529-2571.

Links

Table of n, a(n) for n=1..10.

S. Hougardy, Home Page

Crossrefs

Sequence in context: A262496 A007776 A268522 * A005975 A048193 A123411

Adjacent sequences: A123425 A123426 A123427 * A123429 A123430 A123431

Keyword

dead

Author

N. J. A. Sloane, Oct 18 2006

Status

approved