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 A179447 #7 Jul 08 2015 04:48:41 %S A179447 2,1,7,1044976,11331151 %N A179447 Smallest values d such that the equation d =x^5-y^2 has exactly n distinct nonnegative integer solutions. %C A179447 a(0)=2 because no integer solutions x^5-y^2 = 2; %C A179447 a(1)=1 because 1=1^5-0^2; %C A179447 a(2)=7 because 7=2^5-5^2 and 7=8^5-181^2; %C A179447 a(3)=1044976 because 1044976=16^5-60^2 and 1044976=20^5-1468^2 and 1044976=41^5-10715^2; %C A179447 a(4)=11331151 because 11331151=35^5-6418^2 and 11331151=40^5-9543^2 and 11331151=56^5-23225^2 and 11331151=386^5-2927305^2. %H A179447 A. Bremner, <a href="http://dx.doi.org/10.1080/10586458.2008.10129039">On the Equation Y^2 = X^5 + k</a>, Experimental Mathematics 2008 Vol. 17, No. 3, pp. 371-374. %Y A179447 Cf. A179107, A179108, A179109, A179386, A179387, A179388, A179406, A179407, A179408, A179439. %K A179447 hard,more,nonn %O A179447 0,1 %A A179447 _Artur Jasinski_, Jul 14 2010