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 A262872 #13 Oct 10 2015 12:47:30
%S A262872 1,3,4,4,5,6,6,6,7,9,10,10,11,11,11,11,12,14,14,14,14,14,14,14,15,16,
%T A262872 17,18,19,19,19,20,20,21,21,21,23,24,24,24,24,24,24,25,26,26,26,26,26,
%U A262872 27,28,28,29,29,29,29,29,30,30,30,30,30,30,31,32,33,33,33,34,34,34
%N A262872 Expansion of (Sum_{i>=0} x^(i^2)) * (Sum_{j>=0} x^(j^3)) / (1-x).
%C A262872 a(n) is number of nonnegative integer solutions (x,y,z) such that x + y^2 + z^3 = n.
%F A262872 G.f.: (Sum_{i>=0} x^(i^2)) * (Sum_{j>=0} x^(j^3)) / (1-x).
%e A262872 a(4) = 5 because there are 5 solutions: (5,0,0), (4,1,0), (4,0,1), (3,1,1) and (1,2,0).
%Y A262872 Cf. A003059, A262874.
%K A262872 nonn
%O A262872 0,2
%A A262872 _Ran Pan_, Oct 03 2015