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 A269297 #5 Feb 27 2016 09:43:50 %S A269297 5691,10011,12219,13699,17059,19891,20931,22499,23475,26859,27531, %T A269297 30251,30499,33251,34307,38739,39771,39779,40275,42771,43059,45275, %U A269297 46739,47091,49179,49275,51219,53875,53979,56499,58499,59227,60739,61779,64275,64819 %N A269297 Magic sums of 3 X 3 semimagic squares composed of odd squares. %H A269297 <a href="/index/Mag#magic">Index entries for sequences related to magic squares</a> %F A269297 a(n) = 8*A265197(n) + 3. %Y A269297 Cf. A016754, A265197. Subsequence of A269061. %K A269297 nonn %O A269297 1,1 %A A269297 _Arkadiusz Wesolowski_, Feb 21 2016