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 A260049 #12 Jul 24 2015 03:51:20 %S A260049 2312,2432,3232,5319,5373,10112,10719,11691,14592,15417,19712,20412, %T A260049 21688,22194,23841,24705,25920,26217,32724,36096,39168,41823,42194, %U A260049 42417,43713,51597,58029,59211,61557,62192,66944,67068,68553,72873,76464 %N A260049 Composites whose prime factorization in base 5 is an anagram of the number in base 5. %H A260049 Giovanni Resta, <a href="/A260049/b260049.txt">Table of n, a(n) for n = 1..10000</a> %e A260049 2312 = 2^3 * 17^2. In base 5, 33222 = 2^3 * 32^2. %t A260049 Select[Range[10^5], !PrimeQ[#] && Sort@ IntegerDigits[#, 5] == Sort@ Flatten@ IntegerDigits[ Select[ Flatten@ FactorInteger@ #, #>1 &], 5] &] (* _Giovanni Resta_, Jul 14 2015 *) %Y A260049 Cf. A260046, A260047, A260048, A260050, A260051, A260052, A260053, A025283, A260054, A260055. %K A260049 base,easy,nonn %O A260049 1,1 %A A260049 _Stephen Tucker_, Jul 14 2015