id:A165655 - OEIS Search Results

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Number of disconnected 5-regular (quintic) graphs on 2n vertices.

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1

1, 3, 66, 8029, 3484760, 2595985770 (list; graph; listen)

	OFFSET	`6,2`
	LINKS	`N. J. A. Sloane, Transforms`
	FORMULA	`a = A165626 - A006821 = Euler_transformation(A006821) - A006821.`
	CROSSREFS	`a(n)=D(2n, 5) in the triangle A068933.` `Sequence in context: A157543 A157984 A157554 this_sequence A157576 A105443 A065425` `Adjacent sequences: A165652 A165653 A165654 this_sequence A165656 A165657 A165658`
	KEYWORD	`nonn,hard,more`
	AUTHOR	`Jason Kimberley (Jason.Kimberley(AT)newcastle.edu.au), Sep 28 2009`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.