id:A095304 - OEIS Search Results

Search: id:A095304

Displaying 1-1 of 1 results found.

page 1

Smallest prime of the form k^n-2.

+0
4

2, 7, 727, 79, 241, 727, 823541, 5764799, 19681, 16679880978199, 31381059607, 13841287199, 42052983462257057, 6103515623, 4747561509941, 28644003124274380508351359, 98526125335693359373 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(7)=7^7-2=823541 is prime whereas 3^7-2=2185 and 5^7-2=78123 are composite.`
	CROSSREFS	`Cf. A095303 smallest k such that k^n-2 is prime, A087576 smallest k such that k^n+2 is prime, A095302 corresponding primes.` `Sequence in context: A073698 A073860 A093926 this_sequence A065590 A051249 A056165` `Adjacent sequences: A095301 A095302 A095303 this_sequence A095305 A095306 A095307`
	KEYWORD	`nonn`
	AUTHOR	`Hugo Pfoertner (hugo(AT)pfoertner.org), Jun 01 2004`

page 1

Search completed in 0.002 seconds

Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

AT&T Labs Research