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 A269061 #11 Jan 15 2025 16:41:40 %S A269061 3249,3969,5041,5691,6241,6561,7329,8281,8649,8841,9025,9801,10011, %T A269061 10794,11025,11306,11449,11881,12219,12321,12769,12996,13689,13699, %U A269061 13701,14114,14161,14641,15129,15876,16129,16186,16625,16641,17059,17081,17161,17689 %N A269061 Magic sums of 3 X 3 semimagic squares composed of positive squares. %H A269061 <a href="/index/Mag#magic">Index entries for sequences related to magic squares</a> %e A269061 A semimagic square with sum 3249: %e A269061 |----|----|----| %e A269061 | 16 | 529|2704| %e A269061 |----|----|----| %e A269061 |1024|1936| 289| %e A269061 |----|----|----| %e A269061 |2209| 784| 256| %e A269061 |----|----|----| %Y A269061 Subsequence of A265198 and A269062. %Y A269061 Cf. A000290, A265141, A269060. %K A269061 nonn %O A269061 1,1 %A A269061 _Arkadiusz Wesolowski_, Feb 18 2016