id:A023273 - OEIS Search Results

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

+0
1

2, 5, 47, 67, 97, 137, 197, 277, 307, 607, 617, 1307, 1427, 2857, 5717, 6047, 6217, 6257, 6997, 9377, 9787, 9967, 11197, 12097, 13297, 13997, 14347, 16057, 18757, 18947, 20887, 21517, 21587, 21757, 24197, 26227, 28097, 28447, 32117, 33767, 34367, 35117 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Adjacent sequences: A023270 A023271 A023272 this_sequence A023274 A023275 A023276` `Sequence in context: A005166 A121621 A119715 this_sequence A041729 A078665 A163666`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.

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