id:A009199 - OEIS Search Results

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Expansion of exp(ln(1+x)^2).

+0
2

1, 0, 2, -6, 34, -220, 1688, -14868, 147684, -1631376, 19821912, -262573080, 3764276712, -58044604176, 957653604672, -16828739439120, 313742795670288, -6183918938706048, 128463999017594016, -2804979941504113248 (list; graph; listen)

	OFFSET	`0,3`
	LINKS	`INRIA Algorithms Project, Encyclopedia of Combinatorial Structures 128`
	FORMULA	`Sum_{k=0..floor(n/2)} Stirling1(n, 2k)(2*k)!/k!. - Vladeta Jovovic (vladeta(AT)eunet.rs), Sep 21 2003`
	MATHEMATICA	`Exp[ Log[ 1+x ]^2 ]`
	CROSSREFS	`Sequence in context: A030233 A003499 A018953 this_sequence A052824 A019029 A019032` `Adjacent sequences: A009196 A009197 A009198 this_sequence A009200 A009201 A009202`
	KEYWORD	`sign,easy`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified December 16 13:01 EST 2009. Contains 170825 sequences.

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