%I A030470
%S A030470 4,14,20,34,58,64,118,140,148,176,196,218,220,236,238,268,278,286,
%T A030470 316,334,374,386,398,428,430,436,446,460,470,496,508,514,550,566,
%U A030470 568,590,610,616,634,644,670,674,688,706,718,728,740,746,764,770
%N A030470 Numbers n such that n concatenated with n+1, n+2, n+3 is prime.
%e A030470 E.g. 4567 is prime.
%Y A030470 Sequence in context: A139330 A051448 A075319 this_sequence A165721 A051806 
               A034051
%Y A030470 Adjacent sequences: A030467 A030468 A030469 this_sequence A030471 A030472 
               A030473
%K A030470 nonn
%O A030470 1,1
%A A030470 Patrick De Geest (pdg(AT)worldofnumbers.com)