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 A028908 #20 Oct 06 2019 17:50:46 %S A028908 0,1,4,9,61,52,63,94,64,81,100,211,441,961,961,522,652,982,432,631, %T A028908 400,441,844,952,765,652,766,972,874,841,900,961,4210,9810,6511,5221, %U A028908 9621,9631,4441,5211,6100,8611,7641,9841,9631,5220,6211,9220,4320 %N A028908 Arrange digits of squares in descending order. %H A028908 Vincenzo Librandi, <a href="/A028908/b028908.txt">Table of n, a(n) for n = 0..1000</a> %H A028908 John Case, <a href="http://www.cis.udel.edu/~case/colt.html">COLT Page?</a> %t A028908 FromDigits[Sort[IntegerDigits[#],Greater]]&/@(Range[0,50]^2) (* _Harvey P. Dale_, May 08 2013 *) %Y A028908 Cf. A028907. %K A028908 nonn,base %O A028908 0,3 %A A028908 _N. J. A. Sloane_ %E A028908 More terms from _Patrick De Geest_, Apr 15 1998