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 A071384 #27 Sep 15 2023 07:53:17 %S A071384 0,1,3,5,9,19,34,65,75,167,269,372,401,896,1444,2002,2435,5445,8779, %T A071384 12175,15591,34862,56213,77953,113501,231769,253794,409231,567501, %U A071384 886464,1687299,1982193,3196190,4432317,7146896,13178226,15980946 %N A071384 Radii of the circles around (0,0) that contain record numbers of lattice points, rounded up to the next integer. %C A071384 a(n)^2 = A071383(n) for a(n) = 1, 5, 65, ... . %H A071384 Ray Chandler, <a href="/A071384/b071384.txt">Table of n, a(n) for n = 1..425</a> %H A071384 Hugo Pfoertner, <a href="http://www.randomwalk.de/sequences/a071383.pdf">Construction of A071383, A071384, A071385</a> %F A071384 a(n) = ceiling ( A071383(n)^(1/2) ). %Y A071384 Cf. A071383, A071385, A046109. %K A071384 nonn %O A071384 1,3 %A A071384 _Hugo Pfoertner_, May 23 2002 %E A071384 Description clarified by _Günter Rote_, Sep 13 2023