%I
%S 1,4,17,157,7420,11403801
%N Total number of abstract order types of configurations of n points in dimensions 2 through n1.
%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. 97100 in Abstracts 13th Canadian Conference on Computational Geometry (CCCG '01), Waterloo, Aug. 1315, 2001.
%Y Row sums of A063853.
%K nonn
%O 3,2
%A _N. J. A. Sloane_, Aug 26 2001
