%I A032612
%S A032612 18,29,310,411,512,613,714,815,916,1017,1118,1219,1320,1421,1522,1623,
%T A032612 1724,1825,1926,2027,2128,2229,2330,2431,2532,2633,2734,2835,2936,
%U A032612 3037,3138,3239,3340,3441,3542,3643,3744,3845,3946,4047,4148,4249
%N A032612 Concatenation of n and n+7.
%F A032612 a(n)=n*10^floor(log10(n+7)+1)+n+7, with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), 
               Oct 09 2008]
%Y A032612 Cf. A001704, A020338.
%Y A032612 Sequence in context: A167333 A045000 A144833 this_sequence A151700 A154367 
               A161164
%Y A032612 Adjacent sequences: A032609 A032610 A032611 this_sequence A032613 A032614 
               A032615
%K A032612 nonn,base
%O A032612 1,1
%A A032612 Patrick De Geest (pdg(AT)worldofnumbers.com), May 15, 1998.