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A058673 Number of matroids on n labeled points. 3
1, 2, 5, 16, 68, 406, 3807, 75164, 10607540 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

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.

Index entries for sequences related to matroids

CROSSREFS

Row sums of A058669. Closely related to A114491.

Cf. A055545

Sequence in context: A002631 A107948 A220840 * A296675 A059295 A259408

Adjacent sequences:  A058670 A058671 A058672 * A058674 A058675 A058676

KEYWORD

nonn,nice,more

AUTHOR

N. J. A. Sloane, Dec 30 2000

STATUS

approved

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Last modified January 20 02:03 EST 2019. Contains 319320 sequences. (Running on oeis4.)