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%I #7 Aug 25 2021 05:07:51
%S 12,36,61,90,110,134,159,183,208,232,258,281,306,330,355,379,404,433,
%T 453,477,502,526,551,575,636,649,673,698,722,747,776,796,820,845,869,
%U 894,918,944,967,992,1016,1041,1065,1090,1119
%N Numbers k such that 1 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_
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