id:A124408 - OEIS Search Results

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Numbers n such that 2n+1, 4n+1 and 6n+1 are primes.

+0
6

1, 3, 18, 105, 135, 153, 165, 168, 300, 363, 585, 618, 648, 765, 828, 1110, 1140, 1278, 1518, 1530, 1533, 2130, 2223, 2400, 2475, 2613, 2790, 2925, 3075, 3180, 3345, 3420, 3483, 3810, 3840, 3843, 3933, 4008, 4083, 4095, 4143, 4260, 4263, 4323, 4470, 4545 (list; graph; listen)

	OFFSET	`1,2`
	MATHEMATICA	`Select[Range[4600], And @@ PrimeQ /@ ({2, 4, 6}# + 1) &] (Chandler*)`
	CROSSREFS	`Cf. A005097, A005098, A024899, A123998, A124409-A124411, A071576.` `Sequence in context: A132848 A038158 A009021 this_sequence A136779 A106328 A007277` `Adjacent sequences: A124405 A124406 A124407 this_sequence A124409 A124410 A124411`
	KEYWORD	`nonn`
	AUTHOR	`Artur Jasinski grafixATcsl.pl, Oct 31 2006`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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