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A185218
Number of disconnected regular simple graphs on n vertices with girth at least 8.
5
0, 0, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 3, 2, 4, 3, 5, 4, 6, 5, 8, 7, 10, 10, 13, 13, 17, 17, 22, 23, 28, 30, 37, 39, 47, 51, 61, 66, 78, 85, 100, 110, 127, 140, 163, 179, 206, 228, 261, 289, 330, 365, 416, 461, 522, 579, 657, 726, 819, 909, 1024, 1134, 1277, 1411
OFFSET
0,5
CROSSREFS
Disconnected regular graphs with girth at least g: A068932 (g=3), A185214 (g=4), A185215 (g=5), A185216 (g=6), A185217 (g=7), this sequence (g=8).
Sequence in context: A161061 A161265 A161290 * A363827 A161317 A161251
KEYWORD
nonn,hard
AUTHOR
Jason Kimberley, Dec 14 2012
STATUS
approved