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URL: https://oeis.org/A184954

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A184954
Number of connected 5-regular simple graphs on 2n vertices with girth exactly 4.
11
0, 0, 0, 0, 0, 1, 1, 7, 388, 406824, 1125022325, 3813549359274
OFFSET
0,8
CROSSREFS
Connected k-regular simple graphs with girth exactly 4: A006924 (k=3), A184944 (k=4), this sequence (k=5), A184964 (k=6), A184974 (k=7).
Connected 5-regular simple graphs with girth at least g: A006821 (g=3), A058275 (g=4).
Connected 5-regular simple graphs with girth exactly g: A184953 (g=3), this sequence (g=4), A184955 (g=5).
Sequence in context: A112905 A293459 A058275 * A185354 A222893 A009712
KEYWORD
nonn,more,hard
AUTHOR
Jason Kimberley, Feb 27 2011
STATUS
approved