id:A023288 - OEIS Search Results

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Numbers n such that n remains prime through 3 iterations of function f(x) = 6x + 5.

+0
1

2, 11, 13, 31, 71, 83, 151, 163, 193, 197, 317, 347, 373, 503, 577, 811, 911, 919, 1049, 1051, 1201, 1423, 1721, 1907, 2089, 2243, 2543, 2719, 2963, 3529, 3583, 3607, 3797, 4091, 4153, 4217, 4243, 4409, 4591, 4637, 4783, 5209, 5557, 5783, 5849, 5923, 6091 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A105887 A019407 A075781 this_sequence A106960 A084405 A041447` `Adjacent sequences: A023285 A023286 A023287 this_sequence A023289 A023290 A023291`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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