A124083 - OEIS

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A124083

Numbers n such that p(n)!/p(n)# + 1 is prime (p(i)=i-th prime).

1, 2, 3, 60, 90 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	EXAMPLE	`12/2 +1 = 2 prime so a(1)=1 as 2=p(1)` `123/(23) +1 = 2 prime so a(2)=2 as 3=p(2)` `12345/(235) +1 = 5 prime so a(3)=3 as 5=p(3)`
	CROSSREFS	`Sequence in context: A154253 A097961 A145556 * A112098 A144545 A085326` `Adjacent sequences: A124080 A124081 A124082 * A124084 A124085 A124086`
	KEYWORD	`more,nonn`
	AUTHOR	`Pierre CAMI (pierre-cami(AT)bbox.fr), Nov 25 2006`

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Last modified February 16 06:18 EST 2012. Contains 205860 sequences.