id:A124862 - OEIS Search Results

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a(n)=J(2n+1)*C(2n,n), J(n)=A001045(n).

+0
2

1, 6, 66, 860, 11970, 172116, 2523444, 37487736, 562303170, 8496977060, 129153866556, 1972531074696, 30245473774516, 465314970745800, 7179145222818600, 111037445957810160, 1721080411744977090 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Central coefficients of number triangle A124860.`
	CROSSREFS	`Sequence in context: A127857 A127858 A004355 this_sequence A130977 A133306 A128319` `Adjacent sequences: A124859 A124860 A124861 this_sequence A124863 A124864 A124865`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Nov 10 2006`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research