id:A110166 - OEIS Search Results

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Row sums of Riordan array A110165.

+0
2

1, 4, 18, 85, 410, 1999, 9807, 48304, 238570, 1180615, 5851253, 29033074, 144190943, 716652070, 3564079250, 17734184365, 88280673770, 439625873215, 2189988826125, 10912480440850, 54389237971285, 271142650382080 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`G.f.: (1/sqrt(1-6x+5x^2)/(1-(1-3x-sqrt(1-6x+5x^2)))/(2x)); a(n)=sum{k=0..n, sum{j=0..n, C(n, j)C(2j, j+k)}}.`
	CROSSREFS	`Sequence in context: A010849 A007859 A085923 this_sequence A046885 A055834 A079567` `Adjacent sequences: A110163 A110164 A110165 this_sequence A110167 A110168 A110169`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jul 14 2005`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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