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 A159837 #3 Mar 30 2012 17:26:29 %S A159837 10348965,100348965,103489650,103489965,103498965,1000348965, %T A159837 1003489650,1003489965,1003498965,1023748965,1032890967,1032896709, %U A159837 1032908967,1032967089,1034896500,1034897625,1034899650,1034899965,1034989650 %N A159837 Numbers n such that n, 3n and 9n are anagrams. %C A159837 1. Numbers n such that n and 3n are terms in A023087. %C A159837 2. Intersection of A023087 and A023093. %C A159837 3. Sequence is infinite. Numbers of (8..11)-digit terms are 1,4,24,129 (see b-file). %H A159837 Zak Seidov, <a href="/A159837/b159837.txt">Table of n, a(n) for n = 1..158</a> %Y A159837 A023087 Numbers n such that n and 3n are anagrams. A023093 Numbers n such that n and 9n are anagrams. %K A159837 base,nonn %O A159837 1,1 %A A159837 _Zak Seidov_, Apr 23 2009