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A032626 Primes that are concatenations of n with n + 3. +0
1
47, 811, 1013, 1619, 4447, 4649, 5659, 5861, 6871, 7477, 8689, 9497, 98101, 100103, 104107, 106109, 136139, 140143, 148151, 154157, 158161, 160163, 166169, 176179, 184187, 194197, 206209, 230233, 244247, 250253, 254257 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Cf. A032608, A032618.

Sequence in context: A098226 A106310 A101793 this_sequence A009054 A012018 A010963

Adjacent sequences: A032623 A032624 A032625 this_sequence A032627 A032628 A032629

KEYWORD

nonn,base

AUTHOR

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

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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