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A033011 Every run of digits of n in base 13 has length 2. 2

%I #16 Feb 05 2014 08:08:52

%S 14,28,42,56,70,84,98,112,126,140,154,168,2366,2394,2408,2422,2436,

%T 2450,2464,2478,2492,2506,2520,2534,4732,4746,4774,4788,4802,4816,

%U 4830,4844,4858,4872,4886,4900,7098,7112,7126,7154

%N Every run of digits of n in base 13 has length 2.

%C See A043291 and A033001 through A033014 for the analog in other bases. See A033015 through A033029 for the variants with run lengths >= 2. - _M. F. Hasler_, Feb 02 2014

%H Vincenzo Librandi, <a href="/A033011/b033011.txt">Table of n, a(n) for n = 1..1800</a>

%F a(n) = 14*A043317(n) (= 14*n for n<13). - _M. F. Hasler_, Feb 02 2014

%t Select[Range[8000],Union[Length/@Split[IntegerDigits[#,13]]]=={2}&] (* _Harvey P. Dale_, Feb 27 2013 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified April 23 23:26 EDT 2024. Contains 371917 sequences. (Running on oeis4.)