The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A126740

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A126740

Number of connected graphs on n nodes with chromatic number 6.
(history; published version)

#9 by Alois P. Heinz at Thu Aug 15 16:52:01 EDT 2019

STATUS

editing

approved

#8 by Alois P. Heinz at Thu Aug 15 16:51:59 EDT 2019

EXTENSIONS

a(11) from _Michael Sollami, _, Jan 29 2012.

STATUS

approved

editing

#7 by Russ Cox at Fri Mar 30 16:50:37 EDT 2012

AUTHOR

_N. J. A. Sloane (njas(AT)research.att.com), _, Feb 16 2007

Discussion

Fri Mar 30

16:50

OEIS Server: https://oeis.org/edit/global/110

#6 by Bruno Berselli at Mon Jan 30 03:31:30 EST 2012

STATUS

reviewed

approved

#5 by Michael B. Porter at Sun Jan 29 18:40:07 EST 2012

STATUS

proposed

reviewed

#4 by Michael Sollami at Sun Jan 29 14:12:14 EST 2012

STATUS

editing

proposed

#3 by Michael Sollami at Sun Jan 29 14:12:11 EST 2012

DATA

0, 0, 0, 0, 0, 1, 5, 74, 1940, 113272, 14545025

EXTENSIONS

a(11) from Michael Sollami, Jan 29 2012.

STATUS

approved

editing

#2 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009

KEYWORD

nonn,new

nonn

AUTHOR

N. J. A. Sloane (njas, (AT)research.att.com), Feb 16 2007

#1 by N. J. A. Sloane at Fri May 11 03:00:00 EDT 2007

NAME

Number of connected graphs on n nodes with chromatic number 6.

DATA

0, 0, 0, 0, 0, 1, 5, 74, 1940, 113272

OFFSET

1,7

LINKS

Keith M. Briggs, <a href="http://keithbriggs.info/cgt.html">Combinatorial Graph Theory</a>

CROSSREFS

A diagonal of triangle in A126736.

KEYWORD

nonn

AUTHOR

njas, Feb 16 2007

STATUS

approved