A043927 - OEIS

%I #7 Aug 25 2021 05:11:51

%S 26,38,75,87,124,136,173,188,222,234,272,283,320,332,369,381,418,430,

%T 467,479,516,531,565,577,615,626,663,675,712,724,761,773,810,822,859,

%U 874,908,920,958,969,1006,1018,1055,1067,1104

%N Numbers k such that 3 and 5 occur juxtaposed in the base-7 representation of k but not of k+1.

%Y Cf. A007093.

%K nonn,base

%O 1,1

%A _Clark Kimberling_