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 A175598 #15 Feb 10 2024 04:02:05 %S A175598 95800,217519,414560,2682440,15365639,18796760 %N A175598 Numbers k such that k^4 = x^4 - y^4 - z^4. %C A175598 The values of x are 422481, 20615673, ... (without repetition). %e A175598 a(1) = 95800 because 95800^4 = 422481^4 - 217519^4 - 414560^4. %e A175598 a(2) = 217519 because 217519^4 = 422481^4 - 95800^4 - 414560^4. %Y A175598 Cf. A003828, A175610. %K A175598 nonn,more %O A175598 1,1 %A A175598 _Juri-Stepan Gerasimov_, Jul 21 2010, Jul 24 2010 %E A175598 First 0 removed by _Jinyuan Wang_, Feb 20 2020