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 A003399 #11 Aug 01 2020 17:46:45 %S A003399 10,521,1032,1543,2054,2565,3076,3587,4098,4609,5120,19692,20203, %T A003399 20714,21225,21736,22247,22758,23269,23780,24291,39374,39885,40396, %U A003399 40907,41418,41929,42440,42951,43462,59056,59567,60078,60589,61100,61611,62122,62633,78738 %N A003399 Sum of 10 positive 9th powers. %H A003399 Alois P. Heinz, <a href="/A003399/b003399.txt">Table of n, a(n) for n = 1..10000</a> %K A003399 nonn %O A003399 1,1 %A A003399 _N. J. A. Sloane_