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 A175255 #4 Jan 16 2022 00:09:21 %S A175255 4,25,169,289,361,529,961,2809,5041,7921,12769,16129,24649,26569, %T A175255 27889,32761,38809,52441,120409,139129,160801,167281,175561,201601, %U A175255 237169,253009,259081,273529,292681,316969,326041,332929,358801,418609,564001 %N A175255 Squares in A111153. %C A175255 All terms == 1 mod 3. %F A175255 a(n) = A175256(n)^2. %Y A175255 Cf. A001248, A111153, A175256. %K A175255 nonn %O A175255 1,1 %A A175255 _Zak Seidov_, Mar 15 2010