cp's OEIS Frontend

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.

A260054 Composites whose prime factorization in base 11 is an anagram of the number in base 11.

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%I A260054 #14 Jul 24 2015 03:54:40
%S A260054 4617,7047,18193,33534,180803,196352,217147,283983,386391,422144,
%T A260054 448147,616977,705875,842967,886250,926336,947125,954747,1169536,
%U A260054 1235875,1373375,1866955,1883049,1968259
%N A260054 Composites whose prime factorization in base 11 is an anagram of the number in base 11.
%H A260054 Giovanni Resta, <a href="/A260054/b260054.txt">Table of n, a(n) for n = 1..10000</a>
%e A260054 4617 = 3^5 * 19. In base 11, 3518 = 3^5 * 18.
%t A260054 Select[Range[10^6], !PrimeQ[#] && Sort@ IntegerDigits[#, 11] == Sort@ Flatten@ IntegerDigits[ Select[ Flatten@ FactorInteger@ #, #>1 &], 11] &] (* _Giovanni Resta_, Jul 14 2015 *)
%Y A260054 Cf. A260046, A260047, A260048, A260049, A260050, A260051, A260052, A260053, A025283, A260055.
%K A260054 base,easy,nonn
%O A260054 1,1
%A A260054 _Stephen Tucker_, Jul 14 2015