login
A058712
Number of loopless matroids on n labeled points.
2
1, 1, 2, 6, 27, 185, 2135, 55129, 10094077
OFFSET
0,3
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.
CROSSREFS
Row sums of A058710.
Sequence in context: A277611 A080839 A118085 * A011834 A003513 A113731
KEYWORD
nonn,nice
AUTHOR
N. J. A. Sloane, Dec 31 2000
EXTENSIONS
a(5) corrected by Petros Hadjicostas, Oct 09 2019
STATUS
approved