A230090 A certain restricted class of posets on n points.

1, 1, 1, 1, 1, 1, 2, 2, 5, 11, 35635

Offset: 1

Author

N. J. A. Sloane, Oct 09 2013

Keywords

• nonn
• more

Comments

See Guay-Paquet for precise definition.

Links

• M. Guay-Paquet, A modular relation for the chromatic symmetric functions of (3+1)-free posets, arXiv preprint arXiv:1306.2400 [math.CO], 2013.

Crossrefs

Cf. A000112, A079146.