id:A009575 - OEIS Search Results

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Expansion of sinh(ln(1+x)).ln(1+x).

+0
2

0, 0, 2, -6, 26, -140, 894, -6594, 55152, -515808, 5334480, -60453360, 745035840, -9921337920, 141972324480, -2172695011200, 35410730342400, -612356632473600, 11198955424204800, -215960417122867200, 4379675205233664000 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`\|a(n)\| = number of cycles in all permutations of [n] with even number of cycles. - Vladeta Jovovic (vladeta(AT)Eunet.yu), Sep 06 2007`
	MATHEMATICA	`Sinh[ Log[ 1+x ] ]*Log[ 1+x ]`
	CROSSREFS	`Cf. A000254.` `Sequence in context: A030898 A002788 A134094 this_sequence A127116 A107404 A120574` `Adjacent sequences: A009572 A009573 A009574 this_sequence A009576 A009577 A009578`
	KEYWORD	`sign,easy`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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