id:A023312 - OEIS Search Results

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Numbers n such that n remains prime through 4 iterations of function f(x) = 4x + 9.

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883, 2857, 4073, 4663, 9311, 11131, 16493, 18257, 19541, 22063, 28687, 35837, 48383, 55817, 59393, 62131, 71387, 73037, 73133, 78173, 83423, 86111, 88261, 90511, 93287, 93811, 99377, 101051, 104537, 122203, 125927, 149497, 152377, 153941, 155653 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A096992 A129470 A129471 this_sequence A129469 A031794 A020393` `Adjacent sequences: A023309 A023310 A023311 this_sequence A023313 A023314 A023315`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified July 8 18:40 EDT 2008. Contains 141013 sequences.

AT&T Labs Research