A063856 Number of abstract order types of configurations of n points in 4 dimensions.

1, 8, 204, 505336

Offset

5,2

Links

Table of n, a(n) for n=5..8.

Lukas Finschi, Homepage of Oriented Matroids

L. Finschi and K. Fukuda, Complete combinatorial generation of small point set configurations and hyperplane arrangements, pp. 97-100 in Abstracts 13th Canadian Conference on Computational Geometry (CCCG '01), Waterloo, Aug. 13-15, 2001.

Crossrefs

A diagonal of A063853.

Sequence in context: A241224 A259065 A204247 * A367540 A090962 A359281

Adjacent sequences: A063853 A063854 A063855 * A063857 A063858 A063859

Keyword

nonn,more

Author

N. J. A. Sloane, Aug 26 2001

Status

approved