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 A004857 #13 Aug 04 2020 21:53:14 %S A004857 0,1,2,3,4,5,6,64,65,66,67,68,69,128,129,130,131,132,192,193,194,195, %T A004857 256,257,258,320,321,384,729,730,731,732,733,734,793,794,795,796,797, %U A004857 857,858,859,860,921,922,923,985 %N A004857 Numbers that are the sum of at most 6 nonzero 6th powers. %H A004857 Alois P. Heinz, <a href="/A004857/b004857.txt">Table of n, a(n) for n = 1..10000</a> %Y A004857 Column k=6 of A336820. %K A004857 nonn %O A004857 1,3 %A A004857 _N. J. A. Sloane_