id:A037980 - OEIS Search Results

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( binomial(4*n,2*n)/4-(-1)^n*binomial(2*n,n)/4+(1-(-1)^n)*binomial(2*n,n)^2/4 )/4.

+0
1

0, 1, 4, 109, 800, 19501, 168952, 3979830, 37566720, 862687045, 8615396504, 193710517650, 2015475061184, 44516469004294, 478043160040240, 10399216983867484, 114539008771344384, 2459029841101222485 (list; graph; listen)

	OFFSET	`0,3`
	REFERENCES	`The right-hand side of a binomial coefficient identity in H. W. Gould, Combinatorial Identities, Morgantown, 1972.`
	CROSSREFS	`Sequence in context: A002109 A076265 A114876 this_sequence A015100 A061454 A135917` `Adjacent sequences: A037977 A037978 A037979 this_sequence A037981 A037982 A037983`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

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