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Search: id:A023280
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A023280 Numbers n such that n remains prime through 3 iterations of function f(x) = 3x + 10. +0
1
3, 19, 47, 149, 199, 233, 353, 563, 607, 709, 919, 1013, 1361, 1367, 1697, 1801, 1871, 2137, 2203, 2819, 2879, 2917, 3041, 3229, 3449, 3701, 3943, 4093, 4111, 4177, 4567, 4973, 5519, 5689, 5987, 6053, 6359, 6421, 6841, 7019, 7283, 8647, 8951, 9109, 9719 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A162905 A063553 A099007 this_sequence A054697 A112627 A100697

Adjacent sequences: A023277 A023278 A023279 this_sequence A023281 A023282 A023283

KEYWORD

nonn

AUTHOR

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

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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