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 A303169 #7 Apr 25 2018 08:06:57
%S A303169 1,2,6,30,241,2093,23059,276056,3657901,51751598,792918670,
%T A303169 13031054778,228632547574,4247832219975,83138970732860,
%U A303169 1710953260292025,36844216654753387,827664913984323748,19363023028132371129,470436686367280495474,11843579175327033093769
%N A303169 a(n) = [x^(n^3)] (1/(1 - x))*(Sum_{k>=0} x^(k^3))^n.
%C A303169 Number of nonnegative solutions to (x_1)^3 + (x_2)^3 + ... + (x_n)^3 <= n^3.
%H A303169 <a href="/index/Su#ssq">Index entries for sequences related to sums of cubes</a>
%t A303169 Table[SeriesCoefficient[1/(1 - x) Sum[x^k^3, {k, 0, n}]^n, {x, 0, n^3}], {n, 0, 20}]
%Y A303169 Main diagonal of A303484.
%Y A303169 Cf. A000578, A010052, A224214, A224215, A290054, A298671, A302863.
%K A303169 nonn
%O A303169 0,2
%A A303169 _Ilya Gutkovskiy_, Apr 19 2018