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 A223729 #13 Jan 30 2015 04:24:11 %S A223729 1,2,4,5,7,10,13,28 %N A223729 Numbers appearing in a theorem on the representation of numbers as sums of five non-vanishing squares. %C A223729 See A047701 for the positive numbers that are not the sum of five nonzero squares, which are precisely 1, 2, 3, 4 and 5 + a(n), n = 1,...,8. This appears as Theorem 2. in Grosswald's book on p. 73-4 with references to E. Dubouis (1911) and some others. %D A223729 E. Dubouis, Solution of a problem of J. Tannery, L'Intermédiaire Math. 18 (1911) 55-56. %D A223729 E. Grosswald, Representations of Integers as Sums of Squares. Springer-Verlag, NY, 1985, p. 73-74. %Y A223729 Cf. A123120, A047701. %K A223729 nonn,fini,full %O A223729 1,2 %A A223729 _Wolfdieter Lang_, Mar 27 2013