id:A109742 - OEIS Search Results

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d(n-1) + d(n-2) + (n-1)[d(n-2) + 2d(n-3) + d(n-4)], where d(n), the derangement numbers, are given in A000166..

+0
2

1, 2, 5, 9, 27, 123, 693, 4653, 36111, 317583, 3118617, 33804177, 400755267, 5156954019, 71572594557, 1065571143093, 16938122939703, 286298719063863, 5127206924693601, 96975312507734553, 1931609062232400747, 40414621201681598667, 886153986344092389957 (list; graph; listen)

	OFFSET	`0,2`
	REFERENCES	`Y.-R. Liu and M. R. Murthy, Sieve methods in combinatorics, J. Combinatorial Theory, Ser. A, 111 (2005), 1-23.`
	CROSSREFS	`Cf. A000166, A109743.` `Adjacent sequences: A109739 A109740 A109741 this_sequence A109743 A109744 A109745` `Sequence in context: A006405 A136108 A026297 this_sequence A072979 A094600 A139796`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), based on a suggestion from Douglas Rogers, Aug 13 2005`

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.

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