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 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