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A063801
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Number of nonisomorphic oriented matroids with n points in 3 dimensions.
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0
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OFFSET
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4,2
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REFERENCES
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Fukuda, Komei; Miyata, Hiroyuki; Moriyama, Sonoko. Complete Enumeration of Small Realizable Oriented Matroids. Discrete Comput. Geom. 49 (2013), no. 2, 359--381. MR3017917. - From N. J. A. Sloane, Feb 16 2013
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LINKS
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Table of n, a(n) for n=4..8.
L. 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 13-th Canadian Conference on Computational Geometry (CCCG '01), Waterloo, Aug. 13-15, 2001.
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CROSSREFS
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A diagonal of A063804.
Sequence in context: A120606 A089428 A211892 * A160320 A102945 A132515
Adjacent sequences: A063798 A063799 A063800 * A063802 A063803 A063804
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane, Aug 20 2001
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STATUS
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approved
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