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 A078376 #9 Mar 27 2025 04:29:43
%S A078376 2,5,3,5,3,17,3,13,7,31,11,3,37,43,11,5,13,19,7,13,17,3,73,19,5,41,89,
%T A078376 13,5,101,3,113,61,7,127,2,43,67,47,29,37,5,19,23,41,17,19,29,59,37,7,
%U A078376 7,197,17,103,13,31,11,223,5,113,29,233,241,41,7,257,13,11,53,269,7
%N A078376 Greatest prime factor of numbers which can be written as sum of a positive square and a positive cube.
%H A078376 Amiram Eldar, <a href="/A078376/b078376.txt">Table of n, a(n) for n = 1..10000</a>
%F A078376 a(n) = A006530(A055394(n)).
%t A078376 FactorInteger[#][[-1, 1]] & /@ Select[Range[300], Length[Reduce[a^2 + b^3 == # && a > 0 && b > 0, {a, b}, Integers]] > 0 &] (* _Amiram Eldar_, Mar 27 2025 *)
%Y A078376 Cf. A006530, A055394, A078375.
%K A078376 nonn
%O A078376 1,1
%A A078376 _Reinhard Zumkeller_, Nov 25 2002