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A032725 n prefixed by '9' and followed by '7' is a prime. +0
1
0, 3, 4, 6, 7, 9, 12, 13, 15, 18, 22, 25, 27, 33, 37, 39, 43, 46, 49, 54, 58, 67, 69, 76, 78, 81, 85, 88, 90, 96, 109, 112, 123, 129, 136, 138, 139, 145, 157, 175, 180, 183, 186, 195, 196, 199, 207, 210, 217, 222, 223, 229, 231, 234, 235, 237, 238, 246, 250, 255 (list; graph; listen)
OFFSET

0,2

CROSSREFS

Sequence in context: A006855 A066499 A136110 this_sequence A089038 A137673 A066271

Adjacent sequences: A032722 A032723 A032724 this_sequence A032726 A032727 A032728

KEYWORD

nonn,base

AUTHOR

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

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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