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A032727 Numbers n such that n prefixed by '2' and followed by '9' is prime. +0
1
2, 3, 6, 12, 17, 23, 26, 30, 33, 38, 39, 45, 53, 54, 57, 60, 65, 68, 69, 71, 72, 74, 78, 81, 87, 90, 93, 96, 99, 101, 105, 108, 113, 114, 116, 117, 126, 131, 137, 141, 149, 152, 155, 156, 158, 159, 164, 173, 179, 183, 185, 192, 203, 207, 210, 212, 215, 218, 222 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A070926 A124485 A125867 this_sequence A093687 A000423 A133933

Adjacent sequences: A032724 A032725 A032726 this_sequence A032728 A032729 A032730

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), May 15, 1998.

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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