%I A139766
%S A139766 3,15,104,164,255,2625,2834,11715,18315,48704,49215,64004,65535,73124,
%T A139766 131144,215775,491535,525986,546272,568815,952575,1925564,5781434,
%U A139766 5861583,13496384,14409548,17646615,17949434,20171384,21475124,22632285
%N A139766 A number n is included in the sequence if and only if the n-th integer 
               from among those positive integers which are coprime to n+1 = the 
               (n+1)-st integer from among those positive integers which are coprime 
               to n.
%C A139766 So far it appears that this is a proper subset of A001274.
%H A139766 Leroy Quet, <a href="http://www.prism-of-spirals.net/">Home Page</a> 
               (listed in lieu of email address)
%F A139766 Indices n such that A126356(n) = A126357(n). - Chandler
%Y A139766 Cf. A001274, A069213, A126356, A126357.
%Y A139766 Sequence in context: A123184 A079486 A001274 this_sequence A003276 A136092 
               A145624
%Y A139766 Adjacent sequences: A139763 A139764 A139765 this_sequence A139767 A139768 
               A139769
%K A139766 nonn
%O A139766 1,1
%A A139766 Leroy Quet, Nov 07 2007
%E A139766 More terms from Stefan Steinerberger, Nov 07 2007
%E A139766 a(8) onwards from Ray Chandler (rayjchandler(AT)sbcglobal.net), Jul 01 
               2009