id:A023278 - OEIS Search Results

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

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23, 683, 1663, 2753, 3203, 6073, 6323, 7523, 8243, 9293, 9613, 15173, 19913, 21023, 21683, 25183, 26633, 29663, 34613, 34703, 39293, 41953, 43283, 45533, 52813, 59393, 62473, 65053, 66763, 71713, 71993, 81533, 81953, 84523, 87833, 103843, 104183 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A023295 A142553 A123782 this_sequence A013362 A013365 A127230` `Adjacent sequences: A023275 A023276 A023277 this_sequence A023279 A023280 A023281`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

AT&T Labs Research