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 A350976 #11 Mar 07 2022 16:14:07 %S A350976 2,13,19,44,49,74,146,193,301,506,589,767,769,866,868 %N A350976 Numbers k such that x^3 - y^2 = k has a unique solution. %C A350976 Apparently this is an incomplete version of A179164. (Note that the sign-switched y are counted individually in A179164 and A179163.) - _R. J. Mathar_, Mar 07 2022 %D A350976 H. Brocard, Query 2312, L'Intermédiaire des Mathématiciens, 10 (1903), 283-284. %H A350976 LMFDB <a href="https://www.lmfdb.org/EllipticCurve/Q/73008/bk/1">13</a>, <a href="https://www.lmfdb.org/EllipticCurve/Q/12996/f/1">19</a>, <a href="https://www.lmfdb.org/EllipticCurve/Q/4356/f/1">44</a> %Y A350976 Cf. A350977. %K A350976 nonn,more %O A350976 1,1 %A A350976 _N. J. A. Sloane_, Mar 06 2022