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A063858
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Triangle T(n,k) (n >= 2, k = 0..n-2) giving number of abstract dissection types of configurations of n points in n-k dimensions.
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6
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1, 1, 3, 1, 5, 8, 1, 7, 27, 46, 1, 9, 71, 1063, 790, 1, 11, 156, 44956, 1434219, 37829, 1, 13, 325
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OFFSET
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2,3
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LINKS
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Table of n, a(n) for n=2..25.
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 13th Canadian Conference on Computational Geometry (CCCG '01), Waterloo, Aug. 13-15, 2001.
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EXAMPLE
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Triangle begins
1;
1,3;
1,5,8;
1,7,27,46;
...
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CROSSREFS
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Diagonals give A063859, A063860, A063861, A246992, A246993. Row sums give A063862.
Sequence in context: A210741 A208760 A116647 * A209831 A284367 A280328
Adjacent sequences: A063855 A063856 A063857 * A063859 A063860 A063861
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KEYWORD
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nonn,tabl,nice,more
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AUTHOR
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N. J. A. Sloane, Aug 26 2001
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STATUS
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approved
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