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 A359383 #19 Feb 12 2024 08:39:17 %S A359383 900,60516,29584,2025,8649,13456,4356,66564,15876,19044,56169,1936, %T A359383 67600,9,2916,22500 %N A359383 Allan W. Johnson, Jr.'s 4 X 4 magic square of squares. %C A359383 The magic sum is 93025. %D A359383 Allan W. Johnson, Jr., A Square Magic Square, Journal of Recreational Mathematics, vol. 22:1, 1990, p. 38. %H A359383 John D. Cook, <a href="https://www.johndcook.com/blog/2021/04/20/magic-square-of-squares/">Magic square of squares</a>. %H A359383 Philippe Michaud-Rodgers, <a href="https://warwick.ac.uk/fac/sci/maths/people/staff/michaud/magisquarestalk.pdf">Magic Squares of Squares</a>. %H A359383 Ivars Peterson, <a href="https://www.sciencenews.org/article/magic-squares-squares">Magic Squares of Squares</a>. %H A359383 Paul Pierrat, François Thiriet, and Paul Zimmermann, <a href="https://web.archive.org/web/20210921105123/https://members.loria.fr/PZimmermann/papers/squares.pdf">Magic Squares of Squares</a>. %e A359383 The magic square is: %e A359383 [ 900 60516 29584 2025 ] %e A359383 [ 8649 13456 4356 66564 ] %e A359383 [ 15876 19044 56169 1936 ] %e A359383 [ 67600 9 2916 22500 ] %e A359383 Equivalently: %e A359383 [ 30^2 246^2 172^2 45^2 ] %e A359383 [ 93^2 116^2 66^2 258^2 ] %e A359383 [ 126^2 138^2 237^2 44^2 ] %e A359383 [ 260^2 3^2 54^2 150^2 ] %Y A359383 Cf. A271580: magic sums of 4 X 4 magic squares composed of squares. %K A359383 nonn,fini,full %O A359383 1,1 %A A359383 _Robert C. Lyons_, Dec 28 2022