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A185036
Number of disconnected 3-regular simple graphs on 2n vertices with girth exactly 6.
5
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 6, 37, 432, 8119, 191254, 4855919, 127937854, 3482858263, 98176518258
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OFFSET
0,17
LINKS
Table of n, a(n) for n=0..24.
Jason Kimberley,
Index of sequences counting disconnected k-regular simple graphs with girth exactly g
FORMULA
a(n) =
A185236
(n) -
A185237
(n).
CROSSREFS
Disconnected 3-regular simple graphs with girth exactly g:
A185033
(g=3),
A185034
(g=4),
A185035
(g=5), this sequence (g=6),
A185037
(g=7).
Sequence in context:
A337552
A036358
A340029
*
A185236
A041062
A240324
Adjacent sequences:
A185033
A185034
A185035
*
A185037
A185038
A185039
KEYWORD
nonn
,
more
,
hard
AUTHOR
Jason Kimberley
, Feb 29 2012
STATUS
approved
