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%I #7 Mar 11 2014 01:32:31
%S 4,4,9,4,10,12,21,8,9,10,22,12,26,28,45,32,17,18,19,20,21,22,46,24,25,
%T 26,54,28,58,60,93,32,66,68,35,72,37,38,39,80,41,42,43,44,45,46,94,96,
%U 49,50,51,52,53,54,110,56,57,58,118,60,122,124,189,128,65,66,134,68,138
%N a(n) = the smallest positive multiple of n that has exactly a prime number of (non-leading) 0's in its binary representation.
%Y Cf. A023416, A160899.
%K base,nonn
%O 1,1
%A _Leroy Quet_, May 29 2009
%E Extended by _Ray Chandler_, Jun 14 2009