A184955 Number of connected 5-regular simple graphs on 2n vertices with girth exactly 5.

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 90

Offset

0,16

Links

Table of n, a(n) for n=0..16.

Jason Kimberley, Index of sequences counting connected k-regular simple graphs with girth exactly g

Crossrefs

Connected k-regular simple graphs with girth exactly 5: A185015 (k=2), A006925 (k=3), A184945 (k=4), this sequence (k=5).

Connected 5-regular simple graphs with girth at least g: A006821 (g=3), A058275 (g=4), A205295 (g=5).

Connected 5-regular simple graphs with girth exactly g: A184953 (g=3), A184954 (g=4), this sequence (g=5).

Sequence in context: A183880 A220318 A220341 * A205295 A292304 A337081

Adjacent sequences: A184952 A184953 A184954 * A184956 A184957 A184958

Keyword

nonn,more,hard

Author

Jason Kimberley, Feb 27 2011

Status

approved