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 A004812 #17 Jul 03 2025 12:07:09
%S A004812 12,1035,2058,3081,4104,5127,6150,7173,8196,9219,10242,11265,12288,
%T A004812 59060,60083,61106,62129,63152,64175,65198,66221,67244,68267,69290,
%U A004812 70313,118108,119131,120154,121177,122200,123223,124246,125269,126292,127315,128338,177156,178179,179202
%N A004812 Numbers that are the sum of 12 positive 10th powers.
%H A004812 David A. Corneth, <a href="/A004812/b004812.txt">Table of n, a(n) for n = 1..10000</a> (first 1000 terms from T. D. Noe)
%e A004812 From _David A. Corneth_, Aug 02 2020: (Start)
%e A004812 40172177 is in the sequence as 40172177 = 1^10 + 1^10 + 1^10 + 1^10 + 2^10 + 2^10 + 3^10 + 4^10 + 5^10 + 5^10 + 5^10 + 5^10.
%e A004812 90873751 is in the sequence as 90873751 = 1^10 + 1^10 + 1^10 + 2^10 + 2^10 + 2^10 + 3^10 + 4^10 + 5^10 + 5^10 + 5^10 + 6^10.
%e A004812 122264704 is in the sequence as 122264704 = 1^10 + 3^10 + 4^10 + 4^10 + 4^10 + 5^10 + 5^10 + 5^10 + 5^10 + 5^10 + 5^10 + 6^10. (End)
%o A004812 (PARI) A004812_upto(N, n=12, p=10)={my(P=[x^p|x<-[1..sqrtnint(N-n+1, p)]], S=P); while(n--, S=Set(concat([[x+y|y<-S, x+y<=N]|x<-P]))); S} \\ _M. F. Hasler_, Jul 03 2025
%Y A004812 Cf. A008454 (tenth powers), A003335 - A004823 (same for 3rd - 11th powers).
%K A004812 nonn,easy
%O A004812 1,1
%A A004812 _N. J. A. Sloane_