This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A162694 #12 Sep 09 2014 03:16:10 %S A162694 12,18,36,45,72,108,126,180,288,396,612,1260 %N A162694 Strictly positive numbers n such that 36*n/(36+n) are integers. %C A162694 The 36th row of A127730. %C A162694 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 A162694 Positive integers n such that half of the harmonic mean of 36 and n is an integer. - _Wesley Ivan Hurt_, Sep 07 2014 %t A162694 Select[Range[1000], IntegerQ[36#/(36 + #)] &] (* _Alonso del Arte_, Sep 06 2014 *) %Y A162694 Cf. A162688, A162689, A162690, A162691, A162692, A162693 %Y A162694 Cf. A127730. [From _Franklin T. Adams-Watters_, Aug 07 2009] %K A162694 nonn,fini,full %O A162694 1,1 %A A162694 _Vladimir Joseph Stephan Orlovsky_, Jul 10 2009 %E A162694 Edited by _R. J. Mathar_, Jul 13 2009