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A179084 Odd numbers having an even sum of digits in their decimal representation. 6

%I #7 Feb 14 2017 23:02:16

%S 11,13,15,17,19,31,33,35,37,39,51,53,55,57,59,71,73,75,77,79,91,93,95,

%T 97,99,101,103,105,107,109,121,123,125,127,129,141,143,145,147,149,

%U 161,163,165,167,169,181,183,185,187,189,211,213,215,217,219,231,233,235

%N Odd numbers having an even sum of digits in their decimal representation.

%C Intersection of A005408 and A054683: A000035(a(n))*(1-A179081(a(n)))=1;

%C complement of A179085 with respect to A005408;

%C complement of A179082 with respect to A054683;

%C a(n) mod 2 = 1 and A007953(a(n)) mod 2 = 0.

%H R. Zumkeller, <a href="/A179084/b179084.txt">Table of n, a(n) for n = 1..1000</a>

%H <a href="/index/Ar#10-automatic">Index entries for 10-automatic sequences</a>.

%H <a href="/index/Coi#Colombian">Index entries for Colombian or self numbers and related sequences</a>

%K base,nonn,easy

%O 1,1

%A _Reinhard Zumkeller_, Jun 28 2010

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)