Search: id:A046446
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%I A046446
%S A046446 1,9,15,21,25,27,33,35,39,45,49,51,55,57,63,65,75,77,81,85,91,93,95,99,
%T A046446 105,111,117,119,121,125,133,135,143,147,153,155,159,165,169,171,175,
%U A046446 177,185,187,189,195,209,213,217,219,221,225,231,237,243,245,247,255
%N A046446 Composites whose prime factors contain only odd digits.
%e A046446 E.g. 247 = 13 * 19 -> 1,3 and 9 are odd digits.
%Y A046446 Sequence in context: A067800 A155474 A100819 this_sequence A046350 A046337 
               A046315
%Y A046446 Adjacent sequences: A046443 A046444 A046445 this_sequence A046447 A046448 
               A046449
%K A046446 nonn,easy,base
%O A046446 1,2
%A A046446 Patrick De Geest (pdg(AT)worldofnumbers.com), Jul 15 1998.

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