%I A043258
%S A043258 78,87,178,187,278,287,378,387,478,487,578,587,678,687,778,780,
%T A043258 870,887,978,987,1078,1087,1178,1187,1278,1287,1378,1387,1478,
%U A043258 1487,1578,1587,1678,1687,1778,1780,1870,1887,1978,1987,2078
%N A043258 Numbers n such that 7 and 8 occur juxtaposed in the base 10 representation 
               of n but not of n-1.
%Y A043258 Sequence in context: A124289 A053083 A039435 this_sequence A044038 A025386 
               A045193
%Y A043258 Adjacent sequences: A043255 A043256 A043257 this_sequence A043259 A043260 
               A043261
%K A043258 nonn,base
%O A043258 1,1
%A A043258 Clark Kimberling (ck6(AT)evansville.edu)