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A230090 A certain restricted class of posets on n points. 0
1, 1, 1, 1, 1, 1, 2, 2, 5, 11, 35635 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,7

COMMENTS

See Guay-Paquet for precise definition.

LINKS

Table of n, a(n) for n=1..11.

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.

Sequence in context: A058021 A152445 A077182 * A286465 A208258 A208872

Adjacent sequences:  A230087 A230088 A230089 * A230091 A230092 A230093

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Oct 09 2013

STATUS

approved

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Last modified October 19 03:34 EDT 2019. Contains 328211 sequences. (Running on oeis4.)