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A276110 The number of rotation systems of drawings of the complete graph K_n, where the rotation system describes the clockwise cyclic order of incident edges around each vertex. 1
1, 2, 5, 102, 11556, 5370725, 7198391729 (list; graph; refs; listen; history; text; internal format)
OFFSET
3,2
COMMENTS
The number of realizable order types on n points in the plane (A063666) is exactly the number of rotation systems of straight-line drawings of K_n.
LINKS
B. M. Ábrego, O. Aichholzer, S. Fernández-Merchant, T. Hackl, J. Pammer, A. Pilz, P. Ramos, G. Salazar, and B. Vogtenhuber, All Good Drawings of Small Complete Graphs, In Proc. 31st European Workshop on Computational Geometry EuroCG '15, pages 57-60, Ljubljana, Slovenia, 2015.
Wikipedia, Rotation Systems
CROSSREFS
Coincides with A276109 for n <= 5.
Sequence in context: A208209 A276267 A215845 * A136106 A122696 A237267
KEYWORD
nonn,more
AUTHOR
Manfred Scheucher, Aug 18 2016
STATUS
approved

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Last modified April 21 17:00 EDT 2024. Contains 371874 sequences. (Running on oeis4.)