id:A138187 - OEIS Search Results

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Hankel transform of C(2n+3,n).

+0
2

1, -4, 3, 3, -8, 5, 5, -12, 7, 7, -16, 9, 9, -20, 11, 11, -24, 13, 13, -28, 15, 15, -32, 17, 17, -36, 19, 19, -40, 21, 21, -44, 23, 23, -48, 25, 25, -52, 27, 27, -56, 29, 29, -60, 31, 31, -64, 33, 33, -68, 35, 35, -72, 37, 37, -76, 39, 39, -80, 41 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Hankel transform of A002054(n+1). Hankel transform of A002054(n) is A057078(n+1).` `Partial sums are A138188.`
	FORMULA	`G.f. : (1-2x-2x^2-x^3)/(1+x+x^2)^2;`
	CROSSREFS	`Sequence in context: A006994 A038627 A155835 this_sequence A055525 A007568 A091884` `Adjacent sequences: A138184 A138185 A138186 this_sequence A138188 A138189 A138190`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Mar 04 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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