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A184954
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Number of connected 5-regular simple graphs on 2n vertices with girth exactly 4.
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11
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0, 0, 0, 0, 0, 1, 1, 7, 388, 406824, 1125022325, 3813549359274
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OFFSET
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0,8
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LINKS
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Table of n, a(n) for n=0..11.
Jason Kimberley, Index of sequences counting connected k-regular simple graphs with girth exactly g
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CROSSREFS
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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
Adjacent sequences: A184951 A184952 A184953 * A184955 A184956 A184957
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KEYWORD
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nonn,more,hard
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AUTHOR
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Jason Kimberley, Feb 27 2011
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STATUS
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approved
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