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A058721
Number of simple matroids on n labeled points.
1
1, 2, 7, 49, 733, 29760, 9000402
OFFSET
2,2
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 A058720.
Sequence in context: A377826 A186860 A139008 * A363862 A340027 A362340
KEYWORD
nonn,nice,more
AUTHOR
N. J. A. Sloane, Dec 31 2000
STATUS
approved