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A058721
Number of simple matroids on n labeled points.
1
1, 2, 7, 49, 733, 29760, 9000402
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OFFSET
2,2
LINKS
Table of n, a(n) for n=2..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
A058720
.
Sequence in context:
A293043
A186860
A139008
*
A363862
A340027
A362340
Adjacent sequences:
A058718
A058719
A058720
*
A058722
A058723
A058724
KEYWORD
nonn
,
nice
,
more
AUTHOR
N. J. A. Sloane
, Dec 31 2000
STATUS
approved
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Last modified March 19 07:49 EDT 2024. Contains 370958 sequences. (Running on oeis4.)