id:A114190 - OEIS Search Results

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Expansion of 1/(1+x(1-x)c(-2x)), c(x) the g.f. of A000108.

+0
2

1, -1, 4, -17, 87, -490, 2945, -18517, 120340, -802005, 5451651, -37652546, 263480357, -1864065017, 13311094644, -95816113129, 694511157535, -5064818563258, 37135165923801, -273581694291309, 2024194855052180, -15034769479254861, 112062948489702251, -837936593024505298 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`Diagonal sums of A114189. Alernating sign version of A110508.`
	FORMULA	`G.f.: 4/(3+x+(1-x)sqrt(1+8x)).`
	CROSSREFS	`Sequence in context: A163071 A056542 A110508 this_sequence A135168 A058279 A143405` `Adjacent sequences: A114187 A114188 A114189 this_sequence A114191 A114192 A114193`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Nov 16 2005`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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