A058712 Number of loopless matroids on n labeled points.

1, 1, 2, 6, 27, 185, 2135, 55129, 10094077

Offset: 0

Author

N. J. A. Sloane, Dec 31 2000

Keywords

• nonn
• nice

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

Row sums of A058710.

Extensions

a(5) corrected by Petros Hadjicostas, Oct 09 2019