A058712 Number of loopless matroids on n labeled points.

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

Offset

0,3

Links

Table of n, a(n) for n=0..8.

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.

Sequence in context: A277611 A080839 A118085 * A011834 A003513 A113731

Adjacent sequences: A058709 A058710 A058711 * A058713 A058714 A058715

Keyword

nonn,nice

Author

N. J. A. Sloane, Dec 31 2000

Extensions

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

Status

approved