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A033017 Numbers n such that every run of digits of n in base 4 has length >=2. 2

%I

%S 5,10,15,21,42,63,80,85,90,95,160,165,170,175,240,245,250,255,320,336,

%T 341,346,351,362,383,640,661,672,677,682,687,703,960,981,1002,1008,

%U 1013,1018,1023,1280,1285,1290,1295,1344,1360,1365

%N Numbers n such that every run of digits of n in base 4 has length >=2.

%H Vincenzo Librandi, <a href="/A033017/b033017.txt">Table of n, a(n) for n = 1..1600</a>

%t Select[Range[1400],Min[Length/@Split[IntegerDigits[#,4]]]>1&] (* _Harvey P. Dale_, Jun 05 2013 *)

%Y Supersequence of A033002.

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified May 7 23:48 EDT 2021. Contains 343652 sequences. (Running on oeis4.)