id:A120392 - OEIS Search Results

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A120392

a(1)=least k such that p(1)=(k*3)^2 + k*3 -1 is prime (so a(1)=1 as 3^2+3-1= 11 = p(1) = prime), then a(n+1)=least k such that (k*p(n))^2 + k*p(n) -1 = p(n+1) = prime.

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1, 1, 1, 1, 13, 1, 101, 130, 109, 418 (list; graph; listen)

	OFFSET	`1,5`
	COMMENT	`p sequence starts 11,131,17291,298995971,15108361827832297751`
	CROSSREFS	`Sequence in context: A040181 A123187 A046733 this_sequence A133371 A010223 A010222` `Adjacent sequences: A120389 A120390 A120391 this_sequence A120393 A120394 A120395`
	KEYWORD	`nonn`
	AUTHOR	`Pierre CAMI (pierrecami(AT)tele2.fr), Jul 01 2006`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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