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A033012 Every run of digits of n in base 14 has length 2. 2

%I

%S 15,30,45,60,75,90,105,120,135,150,165,180,195,2940,2970,2985,3000,

%T 3015,3030,3045,3060,3075,3090,3105,3120,3135,5880,5895,5925,5940,

%U 5955,5970,5985,6000,6015,6030,6045,6060,6075,8820

%N Every run of digits of n in base 14 has length 2.

%C See A043291 and A033001 through A033014 for the analog in other bases, A033015 - A033029 for the variants with run lengths >= 2. - _M. F. Hasler_, Feb 04 2014

%H Vincenzo Librandi, <a href="/A033012/b033012.txt">Table of n, a(n) for n = 1..2000</a>

%F a(n) = 15*A043318(n) (= 15*n for n<14). - _M. F. Hasler_, Feb 02 2014

%t Select[Range[9000],Union[Length/@Split[IntegerDigits[#,14]]]=={2}&] (* _Harvey P. Dale_, Apr 26 2013 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified November 14 20:15 EST 2019. Contains 329130 sequences. (Running on oeis4.)