%I #5 Dec 05 2013 19:56:34
%S 1,5,13,3,15,9,17,7,23,19,25,35,21,39,37,11,33,45,27,47,31,51,41,55,
%T 29,43,61,59,57,53,49,63,65,75,67,71,69,79,77,81,73,85,91,95,83,97,
%U 105,87,101,99,115,107,93,123,111,117,113,109,119,103,121,125,129,135,133,137
%N Rearrangement of odd numbers such that every concatenation of at least two terms is composite.
%C Conjecture: Sequence is infinite. And every odd number is a member.
%e 15,513,133,315,1513,5133,13315,15133,513315,1513315 all are composite.
%K base,nonn
%O 1,2
%A _Amarnath Murthy_, Oct 17 2003
%E More terms from _Ray Chandler_, Oct 18 2003