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 A198831 #19 Oct 30 2017 12:02:19
%S A198831 0,4,20,28,39,47,81,135,152,207,216,270,496,546,615,732,832,1148,1208,
%T A198831 1343,1391,1541,1750,2000,2260,2548,2575,2825,3679,3807,4220,4604,
%U A198831 5076,5508,5835,5859,6291,7538,7656,8188,8423,8712,8964,12092,12205,12511,12926
%N A198831 Successive records in maximal positive distance d = x^3 - y^2.
%C A198831 Successive records in A077116.
%H A198831 J. Calvo, J. Herranz, G. Saez, <a href="https://doi.org/10.1090/S0025-5718-09-02240-6">A new algorithm to search for small nonzero |x^3 - y^2| values</a>, Math. Comp. 78 (2009), 2435-2444.
%t A198831 aa = {}; bb = {}; max = -1; Do[kk = x^3 - Floor[x^(3/2)]^2; If[kk > max, AppendTo[aa, kk]; AppendTo[bb, x]; max = kk], {x, 1, 10000}]; aa
%Y A198831 Cf. A077116, A078933, A179107, A179108, A179109.
%K A198831 nonn
%O A198831 1,2
%A A198831 _Artur Jasinski_, Oct 30 2011