id:A013586 - OEIS Search Results

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Smallest prime p such that n divides one of f(p)-1, f(p) or f(p)+1, where f(p) is product of primes <= p, or 0 if no such p exists.

+0
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2, 2, 2, 0, 3, 3, 3, 0, 0, 5, 7, 0, 13, 7, 5, 0, 17, 0, 7, 0, 7, 11, 23, 0, 0, 13, 0, 0, 5, 5, 5, 0, 11, 17, 7, 0, 23, 19, 13, 0, 41, 7, 43, 0, 0, 23, 47, 0, 0, 0, 17, 0, 19, 0, 11, 0, 19, 29, 13, 0, 17, 31, 0, 0, 13, 11, 67, 0, 23, 7, 71, 0, 53, 37, 0, 0, 11, 13, 29, 0, 0, 41, 83, 0, 17, 43, 29, 0 (list; graph; listen)

	OFFSET	`1,1`
	REFERENCES	`M. R. Mudge, Smarandache Notions Journal, University of Craiova, Vol. VII, No. 1, 1996.`
	LINKS	`M. L. Perez et al., eds., Smarandache Notions Journal`
	CROSSREFS	`Sequence in context: A109135 A059288 A071443 this_sequence A071441 A134577 A071442` `Adjacent sequences: A013583 A013584 A013585 this_sequence A013587 A013588 A013589`
	KEYWORD	`nonn`
	AUTHOR	`Michael R. Mudge (Amsorg(AT)aol.com)`
	EXTENSIONS	`David W. Wilson (davidwwilson(AT)comcast.net) points out that the published beginning is incorrect and has extended this sequence and supplied a better description.`

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Last modified December 4 08:07 EST 2009. Contains 170310 sequences.

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