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 A004820 #16 Aug 05 2020 00:57:26 %S A004820 9,2056,4103,6150,8197,10244,12291,14338,16385,18432,177155,179202, %T A004820 181249,183296,185343,187390,189437,191484,193531,354301,356348, %U A004820 358395,360442,362489,364536,366583,368630,531447,533494,535541,537588,539635,541682,543729,708593,710640 %N A004820 Numbers that are the sum of 9 positive 11th powers. %H A004820 David A. Corneth, <a href="/A004820/b004820.txt">Table of n, a(n) for n = 1..10000</a> (first 1000 terms from T. D. Noe) %e A004820 From _David A. Corneth_, Aug 04 2020: (Start) %e A004820 1088578555 is in the sequence as 1088578555 = 2^11 + 2^11 + 2^11 + 2^11 + 2^11 + 3^11 + 6^11 + 6^11 + 6^11. %e A004820 2345030787 is in the sequence as 2345030787 = 2^11 + 2^11 + 3^11 + 3^11 + 3^11 + 3^11 + 4^11 + 6^11 + 7^11. %e A004820 4326193446 is in the sequence as 4326193446 = 1^11 + 1^11 + 3^11 + 3^11 + 4^11 + 4^11 + 6^11 + 7^11 + 7^11. (End) %Y A004820 Cf. A008455 (eleventh powers). %K A004820 nonn,easy %O A004820 1,1 %A A004820 _N. J. A. Sloane_