A185245 - OEIS

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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 (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 March 4 02:11 EST 2021. Contains 341773 sequences. (Running on oeis4.)