Revision History for A140440
(Underlined text is an addition;
strikethrough text is a deletion.)
Showing all changes.
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#10 by Peter Luschny at Sun Jun 13 05:05:28 EDT 2021
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#9 by Joerg Arndt at Sun Jun 13 03:47:17 EDT 2021
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#8 by Brendan McKay at Sun Jun 13 03:44:34 EDT 2021
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#7 by Brendan McKay at Sun Jun 13 03:44:19 EDT 2021
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| DATA
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0, 0, 0, 0, 1, 1, 2, 5, 12, 40, 154, 766, 4672, 34547, 302185, 3073267, 35933851, 479768761, 7284446498, 125435333136
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| EXTENSIONS
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a(18)-a(20) from Brendan McKay, Jun 13 2021
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| STATUS
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approved
editing
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#6 by Alois P. Heinz at Sun Apr 18 14:17:30 EDT 2021
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#5 by Andrew Howroyd at Sun Apr 18 14:17:11 EDT 2021
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#4 by Andrew Howroyd at Sun Apr 18 14:14:57 EDT 2021
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| KEYWORD
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nonn,more
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approved
editing
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#3 by R. J. Mathar at Sat Jul 14 18:08:39 EDT 2012
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#2 by R. J. Mathar at Sat Jul 14 18:08:35 EDT 2012
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| AUTHOR
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_Brendan McKay, _, Jun 17 2008
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| STATUS
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approved
editing
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#1 by N. J. A. Sloane at Sun Jun 29 03:00:00 EDT 2008
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| NAME
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Number of n-node biconnected graphs with girth at least 5.
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| DATA
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0, 0, 0, 0, 1, 1, 2, 5, 12, 40, 154, 766, 4672, 34547, 302185, 3073267, 35933851
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| OFFSET
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1,7
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| EXAMPLE
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The 5 graphs of order 8 are:
0: 4 6; 1: 5 6; 2: 5 7; 3: 6 7; 4: 0 7; 5: 1 2; 6: 0 1 3; 7: 2 3 4;
0: 4 5; 1: 4 6; 2: 5 7; 3: 6 7; 4: 0 1; 5: 0 2; 6: 1 3; 7: 2 3;
0: 4 5; 1: 4 6; 2: 5 7; 3: 6 7; 4: 0 1 7; 5: 0 2; 6: 1 3; 7: 2 3 4;
0: 4 5; 1: 4 7; 2: 5 6; 3: 6 7; 4: 0 1 6; 5: 0 2 7; 6: 2 3 4; 7: 1 3 5;
0: 3 6; 1: 4 6; 2: 5 6; 3: 0 7; 4: 1 7; 5: 2 7; 6: 0 1 2; 7: 3 4 5.
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| CROSSREFS
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Cf. A126757.
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| KEYWORD
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nonn,new
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| AUTHOR
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Brendan McKay, Jun 17 2008
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| STATUS
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approved
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