id:A091861 - OEIS Search Results

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a(1) = 1; a(n) = smallest positive unpicked integer such that n-k divides evenly into a(n)*a(k) for every k, 1 <= k <= n-1.

+0
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1, 2, 4, 3, 12, 30, 60, 420, 840, 1260, 630, 27720, 4620, 60060, 30030, 120120, 240240, 2042040, 3063060, 232792560, 58198140, 38798760, 19399380, 446185740, 892371480, 2230928700, 4461857400, 40156716600, 20078358300, 582272390700 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	CROSSREFS	`Sequence in context: A059662 A114883 A125091 this_sequence A079308 A115399 A109429` `Adjacent sequences: A091858 A091859 A091860 this_sequence A091862 A091863 A091864`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet Mar 13 2004`
	EXTENSIONS	`More terms from John W. Layman (layman(AT)math.vt.edu), May 18 2004` `Further terms from Jon E. Schoenfield (jonscho(AT)hiwaay.net), Jun 21 2007`

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

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