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 A321381 #11 Nov 08 2018 21:11:42
%S A321381 1,3,6,11,18,33,59,96,150,230,357,552,825,1203,1749,2541,3666,5208,
%T A321381 7302,10212,14250,19738,27093,36936,50203,68034,91665,122763,163731,
%U A321381 217740,288621,380922,500652,655987,857226,1116798,1450138,1877232,2423892,3122094,4010883,5139132
%N A321381 Expansion of 1/2 * Product_{i>=0, j>=0, k>=0} (1 + x^(i^2 + j^2 + k^2)).
%H A321381 Seiichi Manyama, <a href="/A321381/b321381.txt">Table of n, a(n) for n = 0..10000</a>
%F A321381 G.f.: Product_{k>0} (1 + x^k)^A002102(k).
%Y A321381 Cf. A002102, A033461, A321380.
%K A321381 nonn
%O A321381 0,2
%A A321381 _Seiichi Manyama_, Nov 08 2018