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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.

A248022 Achilles numbers which are coprime to the sum of their divisors.

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%I A248022 #14 Apr 28 2020 05:56:59
%S A248022 392,800,968,1352,2312,2888,3087,3267,3872,4232,5408,6075,6125,6272,
%T A248022 6728,7688,7803,9248,10952,11552,12800,13448,14283,14792,15125,15488,
%U A248022 16928,17672,19208,20000,21632,22472,22707,25088,26912,27783,27848,29403,29768,30752,33275
%N A248022 Achilles numbers which are coprime to the sum of their divisors.
%H A248022 Amiram Eldar, <a href="/A248022/b248022.txt">Table of n, a(n) for n = 1..10000</a>
%t A248022 achillesQ[n_] := Block[{ls = Last /@ FactorInteger@ n}, Min@ ls > 1 == GCD @@ ls]; Select[ Range@ 35000, achillesQ[ #] && GCD[#, DivisorSigma[1, #]] == 1 &]
%Y A248022 Intersection of A052486 and A003624. - _Michel Marcus_, Sep 30 2014
%K A248022 nonn,easy
%O A248022 1,1
%A A248022 _Robert G. Wilson v_, Sep 29 2014