A140507 - OEIS

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A140507

Numbers n such that 3^n-1 contains a divisor which is an overpseudoprime in base 3.

5, 10, 11, 15, 16, 17, 18, 19, 20 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`An odd prime p is in the sequence iff p is not in A028491`
	CROSSREFS	`Cf. A141350 A020229 A141232 A141390 A003462 A028491.` `Sequence in context: A038030 A094016 A116033 * A136823 A036788 A136811` `Adjacent sequences: A140504 A140505 A140506 * A140508 A140509 A140510`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Shevelev (shevelev(AT)bgu.ac.il), Jun 30 2008`

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Last modified February 16 16:00 EST 2012. Contains 205938 sequences.