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A033016 Numbers whose base-3 expansion has no run of digits with length < 2. 16

%I #16 Aug 13 2021 19:12:20

%S 4,8,13,26,36,40,44,72,76,80,108,117,121,125,134,216,229,234,238,242,

%T 324,328,332,351,360,364,368,377,396,400,404,648,652,656,684,688,692,

%U 702,715,720,724,728,972,976,980,985,998,1053

%N Numbers whose base-3 expansion has no run of digits with length < 2.

%H Vincenzo Librandi, <a href="/A033016/b033016.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Range[10000], Min[Length/@Split[IntegerDigits[#, 3]]]>1&] (* _Vincenzo Librandi_, Feb 05 2014 *)

%Y Cf. A007089. Supersequence of A033001.

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)