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 A248807 #5 Oct 15 2014 23:56:51
%S A248807 0,1,4,6,8,9,10,12,16,18,20,22,24,28,30,32,36,38,39,40,42,48,49,50,52,
%T A248807 54,58,60,64,68,70,72,78,80,81,88,90,96,98,102,108,110,112,118,120,
%U A248807 121,122,128
%N A248807 Range of A037214 = coefficients of (sum_{n>0} n*X^(n^2))^2.
%C A248807 Also: Numbers of the form sum(xy ; x,y>0 and x^2+y^2=n) for some fixed n.
%Y A248807 Cf. A037214.
%K A248807 nonn
%O A248807 1,3
%A A248807 _M. F. Hasler_, Oct 14 2014