A185245 Number of disconnected 4-regular simple graphs on n vertices with girth at least 5.

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 11, 147, 4215, 132741, 4419691, 141928589, 4339298225, 128489587646

Offset: 0

Author

Jason Kimberley, Feb 22 2011

Keywords

• nonn
• more
• hard

Links

• Jason Kimberley, Index of sequences counting disconnected k-regular simple graphs with girth at least g

Crossrefs

Disconnected 4-regular simple graphs with girth at least g: A033483 (g=3), A185244 (g=4), this sequence (g=5), A185246 (g=6).