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A185245 Number of disconnected 4-regular simple graphs on n vertices with girth at least 5. 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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,40

LINKS

Table of n, a(n) for n=0..47.

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).

Sequence in context: A204243 A203203 A046912 * A006122 A111014 A171184

Adjacent sequences:  A185242 A185243 A185244 * A185246 A185247 A185248

KEYWORD

nonn,more,hard

AUTHOR

Jason Kimberley, Feb 22 2011

STATUS

approved

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Last modified April 18 14:35 EDT 2019. Contains 322209 sequences. (Running on oeis4.)