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 A078518 #7 Jul 03 2025 09:30:27 %S A078518 95800,2767624,8332208,11289040,12552200,3642840,2682440,2164632, %T A078518 10409096,34918520,1841160,27450160,186668000,219076465,558424440, %U A078518 588903336,50237800,686398000,92622401 %N A078518 Consider primitive solutions (x,y,z) to x^4+y^4+z^4=w^4 with 0<x<=y<=z arranged in order of increasing w; sequence gives x values. %D A078518 See A003828 for references and links. %Y A078518 Cf. A003828, A078519, A078520. %K A078518 nonn,more %O A078518 1,1 %A A078518 _N. J. A. Sloane_, Jan 07 2003 %E A078518 a(8)-a(19) from A003828 added by _Sean A. Irvine_, Jul 03 2025