id:A067819 - OEIS Search Results

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Sum of the divisors of Binomial(2n,n).

+0
2

3, 12, 42, 144, 728, 2688, 10080, 39312, 127008, 423360, 2419200, 6773760, 32140800, 160704000, 626745600, 1940889600, 9289728000, 38397542400, 156332851200, 642477588480, 2223960883200, 8154523238400, 36280077926400 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`Table[DivisorSigma[1, Binomial[2 n, n]], {n, 30}]`
	CROSSREFS	`Adjacent sequences: A067816 A067817 A067818 this_sequence A067820 A067821 A067822` `Sequence in context: A135264 A084529 A017941 this_sequence A094970 A065179 A048121`
	KEYWORD	`nonn`
	AUTHOR	`Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Feb 08 2002`

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.

AT&T Labs Research