A001459 - OEIS

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A001459

(5*n)!/((2*n)!*(2*n)!*n!).

1, 30, 3150, 420420, 62355150, 9816086280, 1605660228900, 269764879032000, 46225898052627150, 8042050347997165500, 1415997888807961859400, 251762943910387780962000, 45125969443194371927422500 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	MAPLE	`f := n->(5n)!/((2n)!(2n)!*n!);`
	CROSSREFS	`Sequence in context: A091544 A108091 A036363 * A115465 A152131 A159993` `Adjacent sequences: A001456 A001457 A001458 * A001460 A001461 A001462`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 15 19:15 EST 2012. Contains 205852 sequences.