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%I #12 Sep 09 2014 03:16:10
%S 12,18,36,45,72,108,126,180,288,396,612,1260
%N Strictly positive numbers n such that 36*n/(36+n) are integers.
%C The 36th row of A127730.
%C The ansatz 36*n/(36+n) = j (any integer j) yields n = 36*j/(36-j) which demonstrates that the sequence is finite if n >= 0. - _R. J. Mathar_, Jul 13 2009
%C Positive integers n such that half of the harmonic mean of 36 and n is an integer. - _Wesley Ivan Hurt_, Sep 07 2014
%t Select[Range[1000], IntegerQ[36#/(36 + #)] &] (* _Alonso del Arte_, Sep 06 2014 *)
%Y Cf. A162688, A162689, A162690, A162691, A162692, A162693
%Y Cf. A127730. [From _Franklin T. Adams-Watters_, Aug 07 2009]
%K nonn,fini,full
%O 1,1
%A _Vladimir Joseph Stephan Orlovsky_, Jul 10 2009
%E Edited by _R. J. Mathar_, Jul 13 2009
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