Search: id:A032697
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%I A032697
%S A032697 13,25,43,49,53,71,103,113,125,137,141,145,149,155,157,159,165,193,199,
%T A032697 219,239,255,267,275,287,295,297,307,313,317,333,347,349,381,383,407,
%U A032697 417,423,429,431,437,453,457,497,499,509,511,521,537,541,555,557
%N A032697 Only 1 digit from (1,2,3,4,5,6,7,8,9) can precede a(n) to form a lucky 
               number.
%e A032697 If a(n) = 333 then we find only '7'333 to be a lucky number.
%Y A032697 Cf. A000959.
%Y A032697 Sequence in context: A075033 A017533 A026058 this_sequence A125724 A163551 
               A005696
%Y A032697 Adjacent sequences: A032694 A032695 A032696 this_sequence A032698 A032699 
               A032700
%K A032697 nonn,base
%O A032697 0,1
%A A032697 Patrick De Geest (pdg(AT)worldofnumbers.com), May 15, 1998.

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