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 A246693 #4 Sep 03 2014 14:40:19
%S A246693 1,1,3,51,1155,29427,22639155,19594173939,591666769155,
%T A246693 17395890501991155,545562959212245745155,17374763192966689655283,
%U A246693 17822632594268121083311155,98871007862168357169507809155,20542323580569158999838073680199155
%N A246693 Integers of the form A000129(k)/k.
%e A246693 A000129(4)/4 = 12/4 = 3.
%t A246693 z = 1000; t = LinearRecurrence[{2, 1}, {1, 2}, z]; (* A000129 *)
%t A246693 Select[Range[1, z], IntegerQ[t[[#]]/#] &] (* A246692 *)
%t A246693 Table[t[[u[[n]]]]/u[[n]], {n, 1, 17}] (* A246693 *)
%Y A246693 Cf. A246692, A000129.
%K A246693 nonn,easy
%O A246693 1,3
%A A246693 _Clark Kimberling_, Sep 01 2014