Search: id:A032620
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%I A032620
%S A032620 12,16,18,28,46,64,76,78,82,88,102,126,132,138,148,154,178,184,186,
%T A032620 196,208,214,226,228,234,246,264,282,288,298,316,318,322,324,328,342,
%U A032620 348,352,372,408,418,424,432,438,442,444,456,462,468,472,474,478,484
%N A032620 Numbers n such that n concatenated with n + 5 is a prime.
%Y A032620 Cf. A032610.
%Y A032620 Sequence in context: A097620 A089021 A112548 this_sequence A096468 A054281 
               A070329
%Y A032620 Adjacent sequences: A032617 A032618 A032619 this_sequence A032621 A032622 
               A032623
%K A032620 nonn
%O A032620 1,1
%A A032620 Patrick De Geest (pdg(AT)worldofnumbers.com), May 15, 1998.

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