A058687 - OEIS

This site is supported by donations to The OEIS Foundation.

A058687

Number of matroids of rank 3 on n labeled points.

1, 15, 171, 2053, 33442, 1022217 (list; graph; refs; listen; history; internal format)

	OFFSET	`3,2`
	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.` `Index entries for sequences related to matroids`
	CROSSREFS	`A diagonal of A058669.` `Sequence in context: A206600 A016172 A016225 * A206594 A152586 A082678` `Adjacent sequences: A058684 A058685 A058686 * A058688 A058689 A058690`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Dec 30 2000`

Content is available under The OEIS End-User License Agreement .

Last modified February 17 08:44 EST 2012. Contains 205998 sequences.