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 A126709 #23 Nov 23 2023 08:01:55 %S A126709 4,9,2,3,5,7,8,1,6 %N A126709 The Loh-Shu 3 x 3 magic square, variant 2. %C A126709 The magic sum is 15. See Figure 1.2 on page 10 in Maya Ahmed's PhD thesis. This magic square is referred to Loh-Shu magic square and is attributed to the legendary Fu Xi (Fuh-Hi). %C A126709 Sequence A033812 lists the same magic square with rows in reversed order, i.e., vertically flipped. - _M. F. Hasler_, Jan 26 2019 %H A126709 Maya Mohsin Ahmed, <a href="https://arxiv.org/abs/math/0405476">Algebraic Combinatorics of Magic Squares</a>, arXiv:math/0405476 [math.CO], 2004. %H A126709 Alexander Poddiakov, <a href="https://arxiv.org/abs/2311.12811">Self-Similar Structures of Nontransitive Dice Sets: Examples of Nested "Rock-Paper-Scissors" Relations Based on Numbers from The Lo Shu Magic Square</a>, %H A126709 <a href="/index/Mag#magic">Index entries for sequences related to magic squares</a> %e A126709 The magic square is: %e A126709 4 9 2 %e A126709 3 5 7 %e A126709 8 1 6 %Y A126709 A033812 is the same magic square with rows listed in reverse order. %Y A126709 Other magic 3 X 3 squares: A126648, A126652, A126653, A126654. %Y A126709 Larger magic squares: A126647, A126649, A126651, A126650. %K A126709 fini,full,nonn,tabf %O A126709 1,1 %A A126709 _Parthasarathy Nambi_, Feb 12 2007 %E A126709 Edited by _M. F. Hasler_, Jan 26 2019