A246018 Colored Sierksma configurations.

1, 1, 2, 12, 80, 640, 9216

Offset

2,3

Comments

See Hell (2014) for precise definition.

References

Linda Kleist. Zehn bunte Punkte in der Ebene. Mitteilungen der DMV, 19:124, 2011. Contribution to a puzzle of Matschke, and Ziegler, MDMV 18 (2010).

Links

Table of n, a(n) for n=2..8.

Stephan Hell, On the number of colored Birch and Tverberg partitions, Electronic Journal of Combinatorics, 21(3) (2014), #P3.23. See page 11.

Benjamin Matschke, Günter M. Ziegler, Die Rätselseite: zehn bunte Punkte in der Ebene, MDMV 18 (2010).

Crossrefs

Sequence in context: A274782 A185020 A052822 * A292933 A058872 A340103

Adjacent sequences: A246015 A246016 A246017 * A246019 A246020 A246021

Keyword

nonn,more

Author

N. J. A. Sloane, Aug 13 2014

Status

approved