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 A260055 #17 Jul 24 2015 03:55:03
%S A260055 169,185,219,2165,2402,3981,4205,10031,21349,21907,22049,24199,26919,
%T A260055 27746,28802,29767,29919,31107,46749,71375,251521,252257,252361,
%U A260055 259565,275237,280587,292159,293011,301163,303161,305765
%N A260055 Composites whose prime factorization in base 12 is an anagram of the number in base 12.
%H A260055 Giovanni Resta, <a href="/A260055/b260055.txt">Table of n, a(n) for n = 1..10000</a>
%e A260055 169 = 13^2. In base 12, 121 = 11^2.
%o A260055 (PARI) isok(n, b) = {f = factor(n); v = []; for (i=1, #f~, v = concat(v, digits(f[i,1], b)); if (f[i,2]!= 1, v = concat(v, digits(f[i,2], b)));); vecsort(v) == vecsort(digits(n, b));}
%o A260055 lista(nn, b=12) = forcomposite(n=1, nn, if (isok(n,b), print1(n, ", "))); \\ _Michel Marcus_, Jul 14 2015
%Y A260055 Cf. A260046, A260047, A260048, A260049, A260050, A260051, A260052, A260053, A025283, A260054.
%K A260055 base,easy,nonn
%O A260055 1,1
%A A260055 _Stephen Tucker_, Jul 14 2015