id:A118925 - OEIS Search Results

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Least prime p such that n*((p#)^5)-1 is prime.

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2, 3, 3, 2, 347, 2, 2, 3, 389, 29, 13, 2, 7, 3, 2, 269, 1091, 3, 2, 5, 67, 337, 11, 5, 31, 5, 2, 3, 3, 3, 2, 0, 131, 2, 5, 2, 157, 389, 229, 2, 29, 181, 43, 3, 2, 2, 3, 137, 2, 5, 47, 2, 3, 7, 2, 163, 2, 397, 2767, 13, 2, 5, 3, 3, 73, 2, 2, 13, 2, 2, 23, 29, 733, 5, 2, 607, 5, 3, 7, 5, 2, 17 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`1(2^5)-1=31, 31 prime so a(1)=2` `2((23)^5)-1=15551, 15551 prime so a(2)=3` `3((2*3)^5)-1=23327, 23327 prime so a(3)=3`
	CROSSREFS	`Sequence in context: A131307 A091813 A023139 this_sequence A016738 A061911 A082239` `Adjacent sequences: A118922 A118923 A118924 this_sequence A118926 A118927 A118928`
	KEYWORD	`nonn`
	AUTHOR	`Pierre CAMI (pierrecami(AT)tele2.fr), May 25 2006`

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

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