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A115353 The mode of the digits of n (using smallest mode if multimodal). 3

%I #11 Jan 28 2023 23:36:19

%S 0,1,2,3,4,5,6,7,8,9,0,1,1,1,1,1,1,1,1,1,0,1,2,2,2,2,2,2,2,2,0,1,2,3,

%T 3,3,3,3,3,3,0,1,2,3,4,4,4,4,4,4,0,1,2,3,4,5,5,5,5,5,0,1,2,3,4,5,6,6,

%U 6,6,0,1,2,3,4,5,6,7,7,7,0,1,2,3,4,5,6,7,8,8,0,1,2,3,4,5,6,7,8,9,0,1,0,0,0

%N The mode of the digits of n (using smallest mode if multimodal).

%C a(101)=1 and A054054(101)=0, but all previous terms are equivalent.

%H Bence BernĂ¡th, <a href="/A115353/b115353.txt">Table of n, a(n) for n = 0..10000</a>

%e a(12)=1 because 1, 2, the digits of 12, each occur the same number of times and 1 is the smaller of the two modes.

%e a(101)=1 because 1 is the unique mode of 1, 0, 1 (occurring twice while 0 appears only once).

%t a[n_] := Min[Commonest[IntegerDigits[n]]]; Array[a,105,0] (* _Stefano Spezia_, Jan 08 2023 *)

%o (MATLAB)

%o function nth_term=A115353(n)

%o nth_term=mode((num2str(n)-'0'));

%o end

%o sequence = arrayfun(@A115353, linspace(0,105,106))

%o % _Bence BernĂ¡th_, Jan 06 2023

%o (Python)

%o from statistics import mode

%o def a(n): return int(mode(sorted(str(n))))

%o print([a(n) for n in range(105)]) # _Michael S. Branicky_, Jan 08 2023

%Y Cf. A054054 (Smallest digit of n).

%K base,nonn

%O 0,3

%A _Rick L. Shepherd_, Jan 21 2006

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Last modified April 19 02:12 EDT 2024. Contains 371782 sequences. (Running on oeis4.)