Search: id:A155474
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%I A155474
%S A155474 1,9,15,21,25,27,33,35,39,45,49,51,55,57,63,65,69,75,77,85,87,89,91,93,
%T A155474 95,99,105,111,117,119,123,129,131,143,145,147,153,155,159,161,165,169,
%U A155474 171,175,177,183,185,201,203,205,207,209,213,225,235,237,243,245,247
%N A155474 Odd nonprimes n with distinct smallest digits of n and n-th prime.
%e A155474 If n=1=odd nonprime and 2=prime(1), then 1<2 and 1=a(1). If n=9=odd nonprime 
               and 23=prime(9), then 9>2 and 9=a(2). If n=15=odd nonprime and 47=prime(15), 
               then 1<4 and 15=a(3), etc.
%Y A155474 Cf. A000027, A000040, A014076.
%Y A155474 Sequence in context: A071904 A014076 A067800 this_sequence A100819 A046446 
               A046350
%Y A155474 Adjacent sequences: A155471 A155472 A155473 this_sequence A155475 A155476 
               A155477
%K A155474 nonn,base
%O A155474 1,2
%A A155474 Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 23 2009

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