A043147 - OEIS

%I #8 Aug 22 2021 22:36:15

%S 26,38,75,87,124,136,173,182,222,234,266,283,320,332,369,381,418,430,

%T 467,479,516,525,565,577,609,626,663,675,712,724,761,773,810,822,859,

%U 868,908,920,952,969,1006,1018,1055,1067,1104

%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_