id:A023325 - OEIS Search Results

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

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3, 107, 421, 773, 1567, 1637, 3793, 4111, 6961, 12721, 14107, 17851, 26267, 26557, 31327, 33503, 37003, 42281, 57947, 60091, 65423, 67427, 68447, 75721, 82223, 82657, 87877, 96377, 108107, 111373, 113171, 122117, 123887, 125497, 125887, 127301 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A037115 A139921 A142509 this_sequence A094200 A003705 A146214` `Adjacent sequences: A023322 A023323 A023324 this_sequence A023326 A023327 A023328`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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