id:A079390 - OEIS Search Results

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spf(n) * spf(n+1) * spf(n+2), where spf=A020639 (smallest prime factor).

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6, 12, 30, 20, 70, 28, 42, 12, 66, 44, 286, 52, 78, 12, 102, 68, 646, 76, 114, 12, 138, 92, 230, 20, 30, 12, 174, 116, 1798, 124, 186, 12, 30, 20, 370, 148, 222, 12, 246, 164, 3526, 172, 258, 12, 282, 188, 658, 28, 42, 12, 318, 212, 530, 20, 30, 12, 354, 236, 7198, 244 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`For n>2, a(n) is a record value iff (n,n+2) is a twin prime pair (conjecture).`
	CROSSREFS	`Cf. A001359, A006512, A014574.` `Sequence in context: A146005 A109510 A034715 this_sequence A124679 A143272 A153877` `Adjacent sequences: A079387 A079388 A079389 this_sequence A079391 A079392 A079393`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 20 2003`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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