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A185237
Number of disconnected 3-regular simple graphs on 2n vertices with girth at least 7.
5
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 27, 609, 32237, 1885410, 101214662, 5025320937
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OFFSET
0,26
LINKS
Table of n, a(n) for n=0..31.
Jason Kimberley,
Index of sequences counting disconnected k-regular simple graphs with girth at least g
CROSSREFS
Disconnected k-regular simple graphs with girth at least 7:
A185217
(all k),
A185207
(triangle);
A185227
(k=2), this sequence (k=3).
Sequence in context:
A382738
A382806
A185037
*
A099084
A085656
A113100
Adjacent sequences:
A185234
A185235
A185236
*
A185238
A185239
A185240
KEYWORD
nonn
,
hard
,
more
AUTHOR
Jason Kimberley
, Feb 22 2011
STATUS
approved
