%I #11 Aug 25 2021 04:54:12
%S 19,23,44,48,69,73,99,119,123,144,148,169,173,194,198,224,244,248,269,
%T 273,294,298,319,323,349,369,373,394,398,419,423,444,448,499,519,523,
%U 544,548,569,573,599,619,623,644,648,669,673
%N Numbers k such that 3 and 4 occur juxtaposed in the base-5 representation of k but not of k+1.
%Y Cf. A007091.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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