A043231 - OEIS

%I #8 Aug 23 2021 21:45:34

%S 18,81,118,180,218,281,318,381,418,481,518,581,618,681,718,781,810,

%T 881,918,981,1018,1081,1118,1180,1218,1281,1318,1381,1418,1481,1518,

%U 1581,1618,1681,1718,1781,1800,1918,1981,2018,2081

%N Numbers k such that 1 and 8 occur juxtaposed in the base-10 representation of k but not of k-1.

%K nonn,base

%O 1,1

%A _Clark Kimberling_