id:A066211 - OEIS Search Results

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Sum((2*n)!/(2*n-j)!,j=0..n).

+0
1

1, 3, 17, 157, 2081, 36101, 773665, 19726085, 582913217, 19582414021, 736891600001, 30699450566885, 1402556105125345, 69719685409234277, 3745929254826233441, 216310377722912693701, 13359435408855851031425, 878701820865582786218885 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A135751 A001469 A110501 this_sequence A163884 A052143 A069856` `Adjacent sequences: A066208 A066209 A066210 this_sequence A066212 A066213 A066214`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Dec 17 2001`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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