id:A006547 - OEIS Search Results

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Sum ((-1)^(i+1)*binomial(n,i)*2^i*(2*i-1)!,i=1..n).

+0
1

0, 2, -20, 894, -76936, 11218330, -2486192988, 779417002070, -328459055125136, 179127562413460914, -122758432482044667940, 103274000340320165525422, -104642430930574639703548440, 125699390463431456337149276234 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A158268 A163594 A013148 this_sequence A135757 A158843 A008793` `Adjacent sequences: A006544 A006545 A006546 this_sequence A006548 A006549 A006550`
	KEYWORD	`sign`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified December 17 13:29 EST 2009. Contains 170826 sequences.

AT&T Labs Research