id:A166078 - OEIS Search Results

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Expansion of (3(1-x)-sqrt(1+6x-7x^2))/(2(1-x)(1-2x)).

+0
1

1, 0, 2, -6, 30, -150, 806, -4494, 25822, -151782, 908502, -5518590, 33933774, -210814422, 1321230150, -8343458286, 53037407166, -339111023046, 2179407749558, -14071216784862, 91225811704750, -593639364476598 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`First column of inverse of Riordan array ((1+x)/(1+x+2x^2),x(1+2x)/(1+x+2x^2)).` `Hankel transform is A002416.`
	CROSSREFS	`Sequence in context: A055695 A113593 A122763 this_sequence A005432 A009422 A057221` `Adjacent sequences: A166075 A166076 A166077 this_sequence A166079 A166080 A166081`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Oct 06 2009`

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

AT&T Labs Research