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A032724 Numbers n such that n prefixed by '8' and followed by '7' is prime. +0
1
2, 5, 7, 8, 11, 14, 16, 23, 28, 29, 31, 37, 38, 44, 46, 52, 53, 59, 62, 64, 67, 70, 73, 74, 80, 83, 86, 88, 101, 104, 107, 109, 115, 119, 130, 145, 151, 152, 154, 163, 164, 166, 167, 170, 172, 173, 181, 184, 193, 196, 200, 203, 206, 220, 221, 223, 226, 230, 238 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A051279 A111199 A138671 this_sequence A153308 A032402 A020674

Adjacent sequences: A032721 A032722 A032723 this_sequence A032725 A032726 A032727

KEYWORD

nonn,base

AUTHOR

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

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


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