id:A023303 - OEIS Search Results

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Numbers n such that n remains prime through 4 iterations of function f(x) = 2x + 3.

+0
3

47, 67, 97, 137, 307, 1427, 2857, 6047, 6997, 9377, 12097, 16057, 24197, 32117, 35117, 36877, 44507, 46687, 54517, 55487, 64877, 71327, 71807, 76537, 89017, 92387, 94427, 100057, 132707, 142057, 153077, 160207, 184777, 186647, 194027, 200117, 205237 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A099591 A046048 A163390 this_sequence A106874 A023331 A103012` `Adjacent sequences: A023300 A023301 A023302 this_sequence A023304 A023305 A023306`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified November 24 19:42 EST 2009. Contains 167435 sequences.

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