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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
OFFSET
0,17
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
KEYWORD
nonn,more,hard
AUTHOR
Jason Kimberley, Feb 29 2012
STATUS
approved