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A234596 Bicolored noncrossing configurations. 0
1, 8, 80, 992, 13760, 204416, 3180800, 51176960, 844467200 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..9.

F. Chapoton, S. Giraudo, Enveloping operads and bicoloured noncrossing configurations, arXiv preprint arXiv:1310.4521 [math.CO], 2013. See Prop. 2.9.

Samuele Giraudo, Combalgebraic structures on decorated cliques, Formal Power Series and Algebraic Combinatorics, Séminaire Lotharingien de Combinatoire, 78B.15, 2017, p. 8; arXiv:1709.08416 [math.CO], 2017.

FORMULA

For a g.f. see F. Chapoton, S. Giraudo (2013), Prop. 2.9.

CROSSREFS

Sequence in context: A053175 A051580 A228658 * A060375 A097815 A002718

Adjacent sequences:  A234593 A234594 A234595 * A234597 A234598 A234599

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jan 04 2014

STATUS

approved

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Last modified September 29 05:48 EDT 2020. Contains 337425 sequences. (Running on oeis4.)