A043925 - OEIS

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A043925

Numbers k such that 2 and 6 occur juxtaposed in the base-7 representation of k but not of k+1.

%I #7 Aug 25 2021 05:10:50

%S 20,44,69,93,118,146,167,191,216,240,265,289,314,338,363,387,412,436,

%T 461,489,510,534,559,583,608,632,657,681,706,730,755,779,804,832,853,

%U 877,902,926,951,975,1028,1049,1073,1098,1122

%N Numbers k such that 2 and 6 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_