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 A260052 #15 Jul 24 2015 03:52:43 %S A260052 27,85,169,175,771,4369,4803,5359,6805,7339,19405,21689,24433,36526, %T A260052 40405,40799,41723,41773,43999,44353,46131,47447,48819,49917,54965, %U A260052 71047,74273,87823,107892,130683,131026,139157,246977,268885,269977 %N A260052 Composites whose prime factorization in base 8 is an anagram of the number in base 8. %H A260052 Giovanni Resta, <a href="/A260052/b260052.txt">Table of n, a(n) for n = 1..10000</a> %e A260052 27 = 3^3. In base 8, 33 = 3^3. %t A260052 Select[Range[10^6], !PrimeQ[#] && Sort@ IntegerDigits[#, 8] == Sort@ Flatten@ IntegerDigits[ Select[ Flatten@ FactorInteger@ #, #>1 &], 8] &] (* _Giovanni Resta_, Jul 14 2015 *) %Y A260052 Cf. A260046, A260047, A260048, A260049, A260050, A260051, A260053, A025283, A260054, A260055. %K A260052 base,easy,nonn %O A260052 1,1 %A A260052 _Stephen Tucker_, Jul 14 2015