id:A145743 - OEIS Search Results

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a(n) is the smallest composite number m such that all n numbers m+4*k^2 for k=1,2,...,n are prime.

+0
3

9, 15, 25, 25, 247, 583, 5377, 143473, 143473, 143473, 2821813, 62087033647, 91450844347 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`There is no further term up to 5*10^8.`
	CROSSREFS	`Cf. A145741, A145742.` `Sequence in context: A102739 A124622 A075638 this_sequence A164384 A138193 A036315` `Adjacent sequences: A145740 A145741 A145742 this_sequence A145744 A145745 A145746`
	KEYWORD	`more,nonn`
	AUTHOR	`Farideh Firoozbakht (mymontain(AT)yahoo.com), Oct 17 2008`
	EXTENSIONS	`a(12)-a(13) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Nov 17 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.