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A063857 Total number of abstract order types of configurations of n points in dimensions 2 through n-1. 1

%I

%S 1,4,17,157,7420,11403801

%N Total number of abstract order types of configurations of n points in dimensions 2 through n-1.

%H L. Finschi, <a href="http://www.om.math.ethz.ch">Homepage of Oriented Matroids</a>

%H L. Finschi and K. Fukuda, <a href="http://www.ifor.math.ethz.ch/staff/finschi/ccgospcaha/ccgospcaha.pdf">Complete combinatorial generation of small point set configurations and hyperplane arrangements</a>, pp. 97-100 in Abstracts 13th Canadian Conference on Computational Geometry (CCCG '01), Waterloo, Aug. 13-15, 2001.

%Y Row sums of A063853.

%K nonn

%O 3,2

%A _N. J. A. Sloane_, Aug 26 2001

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Last modified February 29 02:35 EST 2020. Contains 332353 sequences. (Running on oeis4.)