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Search: id:A023305
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A023305 Numbers n such that n remains prime through 4 iterations of function f(x) = 2x + 7. +0
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293, 2063, 4583, 9203, 14723, 20123, 25733, 29453, 40253, 54713, 76103, 97523, 99833, 109433, 138683, 149993, 158243, 196853, 199403, 218873, 253103, 297623, 379913, 416963, 445463, 468113, 508073, 551963, 562403, 564713, 574703, 583733 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A142847 A142558 A109562 this_sequence A109182 A085502 A108828

Adjacent sequences: A023302 A023303 A023304 this_sequence A023306 A023307 A023308

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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