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A061833 Multiples of 11 having only odd digits. 1

%I

%S 11,33,55,77,99,319,517,539,715,737,759,913,935,957,979,1111,1133,

%T 1155,1177,1199,1331,1353,1375,1397,1551,1573,1595,1771,1793,1991,

%U 3113,3135,3157,3179,3311,3333,3355,3377,3399,3531,3553,3575,3597,3751,3773,3795

%N Multiples of 11 having only odd digits.

%H Harvey P. Dale, <a href="/A061833/b061833.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>.

%e 1353 = 11*123 is a term having all odd digits.

%t Select[11*Range[400],AllTrue[IntegerDigits[#],OddQ]&] (* The program uses the AllTrue function from Mathematica version 10 *) (* _Harvey P. Dale_, Aug 30 2015 *)

%o (PARI) is(n)=n%22==11 && #setintersect(Set(digits(n)), [0,2,4,6,8])==0 \\ _Charles R Greathouse IV_, Feb 15 2017

%Y Cf. A061829-A061832.

%K nonn,base,easy

%O 1,1

%A _Amarnath Murthy_, May 29 2001

%E Corrected and extended by Larry Reeves (larryr(AT)acm.org), May 30 2001

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Last modified January 28 03:34 EST 2020. Contains 331315 sequences. (Running on oeis4.)