id:A064783 - OEIS Search Results

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Least Prime Signature but not a Jordan-Polya Number.

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30, 60, 180, 210, 360, 420, 840, 900, 1080, 1260, 1680, 1800, 2160, 2310, 2520, 3360, 3600, 4620, 5400, 6300, 6480, 6720, 7200, 7560, 9240, 10800, 12600, 12960, 13440, 13860, 15120, 18480, 21600, 25200, 26880, 27000, 27720, 30030, 32400, 36960 (list; graph; listen)

	OFFSET	`0,1`
	EXAMPLE	`a(1)= 30 since "30" is a least prime signature (cf. A025487) but is not the product of factorial numbers (cf. A001013)`
	CROSSREFS	`A025487, A001013 and A000142.` `Sequence in context: A069819 A143207 A108454 this_sequence A053014 A042784 A042786` `Adjacent sequences: A064780 A064781 A064782 this_sequence A064784 A064785 A064786`
	KEYWORD	`easy,nonn`
	AUTHOR	`Alford Arnold (Arnold1940(AT)aol.com), Oct 19 2001`
	EXTENSIONS	`More terms from Naohiro Nomoto (n_nomoto(AT)yabumi.com) and Don Reble (djr(AT)nk.ca), Oct 21 2001`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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