The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A246988 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A246988

Number of isomorphism classes of oriented matroids of dimension n and cardinality n+3.
(history; published version)

#7 by Alois P. Heinz at Sun Mar 26 15:55:40 EDT 2023

STATUS

proposed

approved

#6 by Andrey Zabolotskiy at Sun Mar 26 15:07:30 EDT 2023

STATUS

editing

proposed

#5 by Andrey Zabolotskiy at Sun Mar 26 15:04:55 EDT 2023

DATA

1, 4, 12, 35, 25, 50, 91, 164

EXTENSIONS

a(4) corrected by Andrey Zabolotskiy, Mar 26 2023

STATUS

approved

editing

Discussion

Sun Mar 26

15:07

Andrey Zabolotskiy: Correction agrees with A063804, A063802, and a few sources that I checked. Apparently this was just a typo.

#4 by Charles R Greathouse IV at Wed Feb 22 12:00:33 EST 2023

LINKS

L. Lukas Finschi, <a href="httphttps://www.omfinschi.com/math.ethz.ch/om/">Homepage of Oriented Matroids</a>

Discussion

Wed Feb 22

12:00

OEIS Server: https://oeis.org/edit/global/2964

#3 by N. J. A. Sloane at Wed Sep 17 13:35:04 EDT 2014

STATUS

editing

approved

#2 by N. J. A. Sloane at Wed Sep 17 13:35:02 EDT 2014

NAME

allocated for N. J. A. Sloane

Number of isomorphism classes of oriented matroids of dimension n and cardinality n+3.

DATA

1, 4, 12, 35, 50, 91, 164

OFFSET

1,2

LINKS

L. Finschi, <a href="http://www.om.math.ethz.ch">Homepage of Oriented Matroids</a>

CROSSREFS

A diagonal of A063804.

KEYWORD

allocated

nonn,more

AUTHOR

N. J. A. Sloane, Sep 17 2014

STATUS

approved

editing

#1 by N. J. A. Sloane at Mon Sep 08 23:46:57 EDT 2014

NAME

allocated for N. J. A. Sloane

KEYWORD

allocated

STATUS

approved