id:A140509 - OEIS Search Results

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Numbers n such that 5^n-1 contains a divisor which is an overpseudoprime in base 5.

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5, 9, 10, 14, 15, 17, 19, 20, 23 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`An odd prime p is in the sequence iff p is not in A004061`
	CROSSREFS	`Cf. A141390 A020231 A141232 A141350 A003463 A004061.` `Sequence in context: A111102 A135980 A070873 this_sequence A155470 A164709 A136318` `Adjacent sequences: A140506 A140507 A140508 this_sequence A140510 A140511 A140512`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Shevelev (shevelev(AT)bgu.ac.il), Jun 30 2008`

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.