id:A119364 - OEIS Search Results

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A119364

Central coefficients of number triangle A119335.

+0
2

0, 1, 1, 1, 11, 81, 351, 1149, 3529, 12601, 52724, 222641, 879308, 3295384, 12303201, 47320365, 186738507, 739129809, 2894481813, 11237844615, 43647142533, 170543919327, 669744238998, 2633027605209, 10337488816041, 40544676533466 (list; graph; listen)

	OFFSET	`0,5`
	COMMENT	`A119363(n)-a(n)=A119365(n).`
	FORMULA	`a(n)=sum{k=0..n-1, C(n+1,3k)*C(n-1,3k)}; a(n)=A119335(2n,n+1).`
	CROSSREFS	`Sequence in context: A091098 A091115 A024146 this_sequence A055429 A003730 A111334` `Adjacent sequences: A119361 A119362 A119363 this_sequence A119365 A119366 A119367`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), May 16 2006`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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