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 A358212 #68 Jun 17 2024 15:27:34 %S A358212 4,10,36,98,232 %N A358212 a(n) is the maximal possible sum of squares of the side lengths of an n^2-gon supported on a subset 1 <= x,y <= n of an integer lattice. %C A358212 Examples show that a(7) >= 462, a(8) >= 842, a(9) >= 1424, a(10) >= 2242. %C A358212 Asymptotics: liminf a(n)/n^4 >= 8/27, limsup a(n)/n^4 <= 2/3. %H A358212 Oliver Mantas Ališauskas, <a href="https://piratux.github.io/connect_points/">Grid connector</a>, Web application for this problem. %H A358212 Oliver Mantas Ališauskas, Giedrius Alkauskas, and Valdas Dičiūnas, <a href="https://arxiv.org/abs/2311.03011">Full Grid Lattice Polygons with Maximal Sum of Squares of Edge-Lengths</a>, arXiv:2311.03011 [math.CO], 2023-2024. %H A358212 S. Chow, A. Gafni, and P. Gafni, <a href="https://doi.org/10.1080/0025570X.2021.1869493">Connecting the dots: maximal polygons on a square grid</a>, Math. Mag. 94 (2021), no. 2, 118-124. %H A358212 G. L. Cohen and E. Tonkes, <a href="https://doi.org/10.37236/1603">Dartboard arrangements</a>, Elect. J. Combin., 8(2) (2001), #R4. %Y A358212 Cf. A209077, A110611, A064842, A226595, A226596. %K A358212 nonn,hard,more %O A358212 2,1 %A A358212 _Giedrius Alkauskas_, Nov 04 2022 %E A358212 a(5) from _Giedrius Alkauskas_, Oct 09 2023 %E A358212 a(6) from _Giedrius Alkauskas_, Nov 30 2023