%I A141584
%S A141584 3,3,5,9,9,10,15,15,20,21,21,25,27,27,28,33,33,35,39,39,40,45,45,50,51,
%T A141584 51,55,57,57,63,63,63,65,69,69,70,75,75,80,81,81,85,87,87,91,93,93,95,
%U A141584 99,99,100,105,105,110,111,111,115,117,117,119,123,123,125,129,129,130
%N A141584 a(n) = the closest multiple of A053669(2n) to 2n. A053669(2n) = the smallest 
               prime coprime to 2n.
%H A141584 Leroy Quet, <a href="http://www.prism-of-spirals.net/">Home Page</a> 
               (listed in lieu of email address)
%e A141584 The smallest prime coprime to 30 is 7. The largest multiple of 7 that 
               is < 30 is 28. The smallest multiple of 7 that is > 30 is 35. 28 
               is closer to 30 than 35 is, so a(15) = 28.
%Y A141584 Cf. A053669.
%Y A141584 Sequence in context: A087343 A079586 A125960 this_sequence A136791 A091916 
               A102437
%Y A141584 Adjacent sequences: A141581 A141582 A141583 this_sequence A141585 A141586 
               A141587
%K A141584 nonn
%O A141584 1,1
%A A141584 Leroy Quet Aug 19 2008
%E A141584 Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jun 22 2009