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A185035
Number of disconnected 3-regular simple graphs on 2n vertices with girth exactly 5.
5
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 12, 67, 597, 7134, 107820, 1876672, 35924730, 741405102, 16356067055, 383931363314
OFFSET
0,12
FORMULA
a(n) = A185235(n) - A185236(n).
CROSSREFS
Disconnected 3-regular simple graphs with girth exactly g: A185033 (g=3), A185034 (g=4), this sequence (g=5), A185036 (g=6), A185037 (g=7).
Sequence in context: A212389 A241074 A020062 * A185235 A226400 A000954
KEYWORD
nonn,more,hard
AUTHOR
Jason Kimberley, Feb 29 2012
STATUS
approved