Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A058687
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A058687 Number of matroids of rank 3 on n labeled points. +0
2
1, 15, 171, 2053, 33442, 1022217 (list; graph; listen)
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: A036734 A016172 A016225 this_sequence A152586 A082678 A107395

Adjacent sequences: A058684 A058685 A058686 this_sequence A058688 A058689 A058690

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Dec 30 2000

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified December 11 12:57 EST 2009. Contains 170656 sequences.


AT&T Labs Research