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A032671 Digit '8' concatenated with a(n) is a prime. +0
1
3, 9, 11, 21, 23, 27, 29, 39, 53, 57, 59, 63, 77, 81, 83, 87, 101, 111, 117, 123, 147, 161, 167, 171, 179, 191, 209, 219, 221, 231, 233, 237, 243, 263, 269, 273, 287, 291, 293, 297, 311, 317, 329, 353, 363, 369, 377, 387, 389, 419, 423, 429, 431, 443, 447 (list; graph; listen)
OFFSET

0,1

CROSSREFS

Adjacent sequences: A032668 A032669 A032670 this_sequence A032672 A032673 A032674

Sequence in context: A111211 A004626 A110999 this_sequence A105949 A032665 A032915

KEYWORD

nonn

AUTHOR

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

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.


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