A058687 Number of matroids of rank 3 on n labeled points.

1, 15, 171, 2053, 33442, 1022217

Offset: 3

Author

N. J. A. Sloane, Dec 30 2000

Keywords

• nonn

Links

• W. M. B. Dukes, Tables of matroids.
• W. M. B. Dukes, Counting and Probability in Matroid Theory, Ph.D. Thesis, Trinity College, Dublin, 2000.
• W. M. B. Dukes, The number of matroids on a finite set, arXiv:math/0411557 [math.CO], 2004.
• W. M. B. Dukes, On the number of matroids on a finite set, Séminaire Lotharingien de Combinatoire 51 (2004), Article B51g.
• Index entries for sequences related to matroids

Crossrefs

Column k=3 of A058669.